What you get
System inhibitor label printing: inhibitor is invisible once it is in the pipes, so the only way anyone knows it is there is a label. System inhibitor label printing records the product, the date added and the next check. Choose 76 × 51 mm or 96 × 68 mm, paper packs from 48 to 3,600 or waterproof polypropylene from 250.
- Printed in full colour and made to order in the UK
- A person checks uploaded files for size, bleed and resolution
- Design it free online, or upload your own PDF
- Free UK delivery over £49.99 this week, otherwise £7.95
System Inhibitor Label Printing
As low as 5.4p each 3,600 for £193.82, Saver
System inhibitor label printing for heating engineers and plumbers who clean and dose a system and want the next person to know about it. The label reads "System Contains Inhibitor" and "Check concentration annually", with lines for the product and dates, plus your company name and phone. Made to order and dispatched from the UK.
Charity, school, club or place of worship? up to 10% off every orderBusiness? up to 5% off your first order
- Free UK delivery over £49.99 this week
- Dispatch from 3 working days
- Printed in the UK
Overview
System inhibitor label printing, made to order and dispatched from the UK.
The problem with clear water
You clean a system, dose it and move on. A year later a different engineer turns up to fix a pump. Is there inhibitor in there? Which one? When did it go in? Without a label they are guessing, and the customer may pay for a dose they did not need, or go without one they did.
What is on it
"System Contains Inhibitor" as the heading and "Check concentration annually" underneath. Write-on lines for "Inhibitor", "Date added" and "Next check". A strip carries your company name and phone number. Add a logo, change the wording or pre-print your usual product name so you only write the dates.
System inhibitor label printing: where and on what
Stick it on the boiler, the system filter or the manifold, wherever the next engineer will look first. Matt paper takes a ballpoint for filling in on the job. Gloss paper gives the brightest colour indoors. Waterproof white polypropylene with a matt laminate is the pick for lofts, garages and plant rooms; use a permanent marker on it.
Sizes are 76 × 51 mm or 96 × 68 mm. Paper packs go from 48 to 3,600 and polypropylene starts at 250. Labels come kiss cut on sheets with a permanent adhesive. Different size? Ask us for a quote.
Intervals come from the maker
Testing and top-up intervals depend on the product, so follow the inhibitor manufacturer's guidance and write the next check date to match. The label just keeps that date where people will see it.
Ordering
Set up system inhibitor label printing in the free online designer, upload a print-ready file, or ask our paid artwork service to do it. A real person checks every uploaded file at no charge. After your order and artwork are confirmed, dispatch takes 3 working days on Express, 5 on Standard and 7 on Saver. UK mainland delivery is £7.95, free on orders of £100 or more after discounts. See delivery, our artwork guidelines and the rest of the trade and compliance labels.
Specs
Materials, sizes and finishing.
| Sizes | 76 x 51 mm, 96 x 68 mm |
|---|---|
| Materials | Gloss paper (indoor), matt paper (indoor, write-on), waterproof white polypropylene with matt laminate |
| Packs | Paper from 48 to 3,600 labels; polypropylene from 250 |
| Supplied | On sheets, kiss cut, ready to peel |
| Printed details | Label wording, write-on lines, company name, phone, optional logo |
| Adhesive | Permanent |
| Custom sizes | Other sizes on request (ask for a quote) |
| Artwork check | Free file check before we print |
| Turnaround | Saver 7, Standard 5, Express 3 working days to dispatch |
| SKU | FP-LAB-021 |
| Price | Final price shown in the configurator. No surprises at checkout. |
| Delivery | UK mainland £7.95 per order, free over £49.99 this week. Scottish Highlands +£10; islands and NI quoted. |
Questions
Quick answers about system inhibitor label printing.
What goes on each system inhibitor label?
A "System Contains Inhibitor" heading, spaces to fill in for "Inhibitor", "Date added" and "Next check", and your company name and phone number. In the online designer you can change the wording or add a logo, and you see exactly what is printed.
Can I write on a system inhibitor label with a pen?
Yes, if you order your system inhibitor label on the right stock. Matt paper takes a ballpoint or a permanent pen. The waterproof polypropylene has a matt laminate, so use a permanent marker on it. Gloss paper is meant for labels that are printed in full with nothing to fill in.
Which system inhibitor label stock copes with rain or damp?
Waterproof polypropylene. It shrugs off water and handling, so it is right for outdoor units, lofts, meter boxes, vans and plant rooms. The paper labels are for dry, indoor spots only.
Will putting these labels on make us compliant?
Not by themselves. A system inhibitor label is a visible record of dates and contacts. What counts is the inspection, service or test itself, and the paperwork that goes with it.
What is the minimum order for these labels?
Paper from 48 labels and polypropylene from 250. Price per label falls as packs get larger, and you can see the cost each for every pack below the price. Need a size that is not listed? Use the Get a quote page.
Could the label name the inhibitor brand I put in the system?
Write the name on by hand, or put it in the extra wording box and we print it for you. It appears as plain text only, because we do not print logos that belong to other companies.
How long until my system inhibitor label order ships?
On Standard it is made and handed to the courier within 5 working days; Express shortens that to 3 working days, Saver stretches it to 7 working days for less. Postage to the UK mainland is £7.95 per basket, not per item, and free when your goods total £100 or more. Highlands mainland addresses add £10; Northern Ireland and the islands are quoted first.
Asked by buyers
How much will System Inhibitor Labels set me back?
£26.74 is where System Inhibitor Labels start, set up as 96 × 68 mm and gloss paper (indoor) on the Saver speed. Change the size, material, extras, quantity or speed and the total on the page moves straight away. The price you see is the price you pay at checkout, with delivery the only thing that can be added. Delivery anywhere on the UK mainland is £7.95 an order, and it costs nothing once the goods come to £100 or more after any discount code (design and artwork fees are not counted).
What wording comes already printed on these labels, and what do I write in myself?
You fill in three things by hand: inhibitor, date added plus next check. Everything else is printed for you, starting with the "SYSTEM CONTAINS INHIBITOR" heading, then your company name, phone number and, as text only, any registration number. Want your logo on too? Add it in the online designer before you finish the layout. Nothing is printed ahead of time: each label is made to order for you.
Is delivery ever free?
It is £7.95 for the whole order, not per item, and free once the goods reach £100 after any discount code; design or artwork charges are left out of that £100. On its own the opening price of £26.74 would add £7.95 for mainland delivery; reach £100 of goods and that goes to zero. A mainland Highlands postcode puts a single £10 on the order. Northern Ireland has its delivery priced before you pay, and so do the Channel Islands, the Scottish islands, Scilly, the Isle of Wight and the Isle of Man. Before delivery, these labels cost from £26.74. On its opening option, System Inhibitor Labels leaves us after 7 working days on Saver.
If I buy System Inhibitor Labels today, when will they leave you?
As the page first opens, the speeds for System Inhibitor Labels are Express 3 working days, Standard 5 and Saver 7, counting Monday to Friday and skipping bank holidays. The count begins once we have your order and a file ready to print. A bigger size or a different material can move it by a day either way; each speed shows its own days as you choose. Tracking arrives by email on the day it ships, and the courier usually takes one to three working days from there.
Will paper do for these labels, or do they need something that copes with damp?
Anywhere damp, outdoors or knocked about: pick the waterproof polypropylene and write on it with a permanent marker. Somewhere dry indoors where you will write details on each one: matt paper is the easiest to write on. Nothing to write and staying indoors: gloss paper does the job for less. Swap between the three materials on this page and the total updates as you go. For these labels, the material can be Waterproof polypropylene (matt laminated, indoor and outdoor); or Matt paper (indoor, easy to write on); or Gloss paper (indoor). For reference, these labels measure 96 × 68 mm. On this page, System Inhibitor Labels start from £26.74.
What are the measurements of System Inhibitor Labels?
It measures 96 × 68 mm and costs from £26.74. If that is not quite right for your space, the Safety Electrical Connection Labels or the Boiler Service Labels may fit better. Spend £100 on goods and mainland delivery is free; below that it is £7.95. Other settings on the page, such as quantity, adjust the total as you go.
Biro or marker: what writes best on these labels?
That comes down to the material. Matt paper is happy with an everyday biro or a thin permanent pen. The waterproof polypropylene has a laminate on top where biro ink just sits and smears, so keep a permanent marker for that one. If the spot is fiddly to reach, write the inhibitor and the rest while the label is still on its backing sheet. For these labels, the material can be Waterproof polypropylene (matt laminated, indoor and outdoor); or Matt paper (indoor, easy to write on); or Gloss paper (indoor).
I belong to a registration scheme. Will you put its badge on my labels?
We cannot, because those badges belong to the scheme and only its members may use them, under its own rules. What we can print is your membership or registration number in plain text, next to your own business logo if you have one. Where your scheme hands out official badge labels or sets rules for showing membership, go by what it says. For these labels, the material can be Waterproof polypropylene (matt laminated, indoor and outdoor); or Matt paper (indoor, easy to write on); or Gloss paper (indoor). Before delivery, these labels cost from £26.74.
Do these labels come on a roll or on sheets, and how many are in a pack?
Paper packs go from 48 up to 3,600 labels, and the waterproof polypropylene version begins at 250. They arrive kiss cut on backing sheets, so each label lifts off on its own. The glue is permanent. Each pack size has its own per-label figure in the price table, which makes comparing two sizes quick. For reference, these labels measure 96 × 68 mm.
What form do System Inhibitor Labels take when they arrive?
In short, the supplied line for System Inhibitor Labels reads: On sheets, kiss cut, ready to peel. Anything unusual in mind? Send the details through our quote form and someone will reply. The Specifications tab lists every other detail. Your basket keeps each line separate, so different sizes and quantities can sit in one order.
Could the total go up after I reach the checkout?
The only thing that can join the goods price is delivery; the price you see is the price you pay at checkout. Delivery anywhere on the UK mainland is £7.95 an order, and it costs nothing once the goods come to £100 or more after any discount code (design and artwork fees are not counted). If you pick a paid design option, it sits in the basket as a separate line with its own fee, so every penny is listed before you pay. Before delivery, these labels cost from £26.74.
Is there a minimum quantity for these labels?
The smallest order is 48 and the largest listed is 10000; the list starts 48, 250, 280, 480, 500 and 520 and carries on from there. The price on the page covers every item in that quantity. To compare two quantities fairly, split each total by its number. A bigger run than the list allows can be priced separately on our Get a quote page. For reference, these labels measure 96 × 68 mm. Nothing is printed ahead of time: each label is made to order for you.
Is there a quicker turnaround for these labels?
Work back from the day you need them. Express takes 3 working days to get System Inhibitor Labels out, against 7 on Saver, and costs £30.97 on the opening option rather than £26.74. Add up to three working days for the courier, plus any time you need to finish the file. Cutting it fine? Put your date in the question box before you order.
I live in the Scottish Highlands. Will System Inhibitor Labels cost more to send?
The whole UK is covered. Outside it, sadly, we cannot deliver. Mainland addresses in the Highlands pay one extra £10 on the order, even when delivery would otherwise be free. For Northern Ireland, and for the Channel Islands, the Scottish islands, Scilly, the Isle of Wight and the Isle of Man, we tell you the delivery cost before you pay, so message us your postcode on the Contact page or our Get a quote page. Choose Saver and these labels leave us after 7 working days; Express brings that down to 3. Before delivery, these labels cost from £26.74. On its opening option, System Inhibitor Labels leaves us after 7 working days on Saver.
Will anyone look at my file before it is printed?
Every file gets a human check for size, bleed and resolution, and we contact you about any problem before printing. With the online designer, what you see on screen is what gets printed. Nobody can know your details better than you, so double-check names, numbers and dates: we print what is supplied, and work begins once the order and file are confirmed. If you have no file, you can build the design for these labels in our free online designer and check every detail before ordering. For reference, these labels measure 96 × 68 mm. On this page, System Inhibitor Labels start from £26.74.
What information can go on System Inhibitor Labels?
In short, the printed details line for System Inhibitor Labels reads: optional logo, phone, company name, write-on lines and label wording. Anything unusual in mind? Send the details through our quote form and someone will reply. The Specifications tab lists every other detail.
Our wording is not finished yet. Can I still pay now and send it later?
Yes. Pay now and add the file afterwards: uploading after ordering is allowed, so you do not have to wait for the final version. If a volunteer, friend or designer is preparing it, they can send the finished file to you to upload, or get in touch through our Contact page quoting your order number. Nothing goes to print until the file arrives and has been checked, so if there is a date to hit, get the artwork over as soon as you can. If you have no file, you can build the design for these labels in our free online designer and check every detail before ordering. For reference, System Inhibitor Labels are sold at 96 × 68 mm.
How many pixels does a photo need to print well on these labels?
Roughly 1,134 pixels across and 803 down for a 96 × 68 mm design, which is 300 dpi. Things read at arm's length need that 300 dpi at full size to stay crisp. Text and logos are safest as vector art, which never goes fuzzy. Pictures saved from a website or social media are nearly always too small, and our file check will point out any that could print blurred. Make the artwork for these labels the same size as the one you order, such as 96 × 68 mm. For reference, System Inhibitor Labels are sold at 96 × 68 mm.
Which file formats can I upload?
A PDF made at the size you ordered works best, with the fonts embedded or turned into outlines. AI, EPS and SVG are fine too, as are high resolution JPG, PNG or TIFF images. Word, PowerPoint or Canva designs can be used, but save them out as a full quality PDF where you can. Attach up to 3 files of up to 25 MB each on the product page, or order first and send them afterwards; we email you a link. For reference, these labels measure 96 × 68 mm. Make the artwork for these labels the same size as the one you order, such as 96 × 68 mm. For reference, System Inhibitor Labels are sold at 96 × 68 mm.
I am not a designer. What if the file I send turns out to be unusable?
You will not be left guessing. Each uploaded file is opened and looked over by a member of the team, and problems such as low-resolution pictures, no bleed or the wrong page size are sent back to you to fix before printing. Nothing is printed until a file passes that check, and you can send a corrected one. If you have no file, you can build the design for these labels in our free online designer and check every detail before ordering. For reference, these labels measure 96 × 68 mm.
Once I finish designing these labels online, is the file mine to keep?
Yes. Order printing with an online design and a full resolution PDF comes with it; after payment you can download it from your confirmation email or from My Account. Just want the file? Finish the design and buy the print-ready PDF on its own for £9.99. As digital content, it cannot be cancelled once the download begins. Make the artwork for these labels the same size as the one you order, such as 96 × 68 mm. For reference, these labels measure 96 × 68 mm.
How well does the glue on System Inhibitor Labels hold?
Straight from the details for System Inhibitor Labels: Permanent. The rest of the spec sits in the Specifications tab further down the page. Want it done another way? Describe it in the question box or on our quote form, and a person will let you know if it can be done.
How do I pick the right material for System Inhibitor Labels?
The material option has 3 settings: waterproof polypropylene (matt laminated, indoor and outdoor); matt paper (indoor, easy to write on); or gloss paper (indoor). It is what your design gets printed onto. Switch between them on the page and the total updates straight away, so you can see what each one adds. For these labels, the material can be Waterproof polypropylene (matt laminated, indoor and outdoor); or Matt paper (indoor, easy to write on); or Gloss paper (indoor). Before delivery, these labels cost from £26.74. Material choices for System Inhibitor Labels: Gloss paper (indoor), Matt paper (indoor, easy to write on) or Waterproof polypropylene (matt laminated, indoor and outdoor).
Could System Inhibitor Labels be made in a size that is not listed?
Straight from the details for System Inhibitor Labels: Other sizes on request (ask for a quote). The rest of the spec sits in the Specifications tab further down the page. Want it done another way? Describe it in the question box or on our quote form, and a person will let you know if it can be done.
Do plumbers and heating engineers buy System Inhibitor Labels from you?
Yes: System Inhibitor Labels sit in our Plumbers & Heating Engineers section, next to other things plumbers and heating engineers buy for boiler swaps, heating jobs and callouts. Prices begin at £26.74. The size is 96 × 68 mm. The material choices are waterproof polypropylene (matt laminated, indoor and outdoor); matt paper (indoor, easy to write on); or gloss paper (indoor). Also in that section: Letterheads and A4 Continuation Sheets. One basket can hold the lot, and delivery is free once the goods reach £100.
Is it worth buying printed labels rather than writing on plain ones?
Usually, yes. Your firm's name, contact details and registration number come already printed on each one, so months later a tenant, client or inspector can see whose work it was and get in touch. Every label matches, and the lines left for handwriting remind you what to fill in on the day. You can begin with one of the smaller packs to try them out. You will also find these labels in our Plumbers & Heating Engineers and Gas Engineers sections.
I work with gas engineers. Are these labels something we could use?
For gas installs and safety checks, look under Gas Engineers in the shop: System Inhibitor Labels are listed there. Prices begin at £26.74; the size is 96 × 68 mm; the material choices are waterproof polypropylene (matt laminated, indoor and outdoor); matt paper (indoor, easy to write on); or gloss paper (indoor). People buying for that kind of work often add NCR Sets or Boiler Service Labels. Put everything in one order and delivery is free at £100 or more.
What is the best spot for these labels, and how do I make them stay?
Choose a place that is clean, dry and easy to spot, either on the item itself or right beside it. Give the surface a wipe to shift dust or grease, then smooth the label down from its centre towards the edges. The glue is permanent and not made for moving, so settle on the spot before you peel. For these labels, the material can be Waterproof polypropylene (matt laminated, indoor and outdoor); or Matt paper (indoor, easy to write on); or Gloss paper (indoor). Before delivery, these labels cost from £26.74. Material choices for System Inhibitor Labels: Gloss paper (indoor), Matt paper (indoor, easy to write on) or Waterproof polypropylene (matt laminated, indoor and outdoor).
Can I send these labels back if I no longer need them?
Not for a change of mind. These labels are made for your order, and goods made to your specification fall outside the 14-day cancellation right (reg. 28(1)(b) of the Consumer Contracts Regulations 2013). You can still cancel and get all your money back before production begins. Anything faulty, damaged or wrong is covered by the Consumer Rights Act 2015, and we reprint it or refund you. Before delivery, these labels cost from £26.74. Nothing is printed ahead of time: each label is made to order for you. For reference, System Inhibitor Labels are sold at 96 × 68 mm.
We need a few different designs. Do they each need their own order?
One checkout covers the lot. Add a basket line for every design, attach the right file to each, then pay once. You pay a single delivery charge of £7.95 for the whole order, or nothing if the goods add up to £100 or more. Repeating one design on another line? Choose the artwork choice that points to a file already in the basket, and no second design fee is charged. Before delivery, these labels cost from £26.74. For reference, these labels measure 96 × 68 mm. On this page, System Inhibitor Labels start from £26.74.
Next year we will want the same label again. Is reordering easy?
Yes. Treat it as a fresh order of the same item with the same settings, and attach the file you used last time. For online designs, the print-ready PDF from the original paid order is waiting in My Account and your confirmation email. Change any details that have moved on, such as a new email address or this year's date, before uploading. For reference, these labels measure 96 × 68 mm. Nothing is printed ahead of time: each label is made to order for you.
Our club needs a big batch of labels, or an odd size. Can you price it?
Our Get a quote page is the place, and it also handles delivery to Northern Ireland and the islands. For anything the page cannot do, tell us the size, number, material, date and postcode on Get a quote, add a file if you have one, and we email a price back. Before delivery, these labels cost from £26.74. For reference, these labels measure 96 × 68 mm.
I am not sure which options to pick for these labels. Can someone advise me?
Of course. Tell us three things: where these labels will go, whether it is for one day or for years, and your deadline. Send that through the question box on this page or the Contact page, and a member of the team will suggest options. If what you need is outside the options listed, the Get a quote page lets you describe it and get a price. Nothing is printed ahead of time: each label is made to order for you. For reference, these labels measure 96 × 68 mm. On this page, System Inhibitor Labels start from £26.74.
Our treasurer needs a receipt for the accounts. What do we get?
Every order gets a confirmation email listing what was bought, the options chosen and the amount paid, and a club, school or small firm can file that as its record of payment. What you pay for these labels is the price shown on the page plus any delivery charge, nothing more. If your accounts need a particular kind of invoice, ask through the Contact page before you order and we will tell you what we can provide. Nothing is printed ahead of time: each label is made to order for you. Before delivery, these labels cost from £26.74. Material choices for System Inhibitor Labels: Gloss paper (indoor), Matt paper (indoor, easy to write on) or Waterproof polypropylene (matt laminated, indoor and outdoor).
Do I have to register before I can buy?
No. Guest checkout is fine, and card payments go through Stripe, so a debit card or a credit card both work. If you choose to open an account while checking out, My Account keeps your past orders and the print files of anything you designed online. Guest or not, you get an email confirming the order and another with tracking once it is sent. Nothing is printed ahead of time: each label is made to order for you. Before delivery, these labels cost from £26.74.
Can I swap my file once I have paid?
It depends on timing. Until production begins, a new file can replace the old one, or the order can be cancelled with a full refund; once it has begun, nothing can be changed. Message us straight away on the Contact page with your order number. Items printed exactly as supplied or designed do not count as faulty, so check names, numbers and dates first. Nothing is printed ahead of time: each label is made to order for you. For reference, these labels measure 96 × 68 mm. On its opening option, System Inhibitor Labels leaves us after 7 working days on Saver.
Will my logo colours come out the same as on screen?
Very close, but not always identical. A screen glows, print reflects light, so a small difference is normal. Sending CMYK artwork keeps it nearest; RGB is changed to CMYK before printing and the brightest greens, blues and oranges can look a touch flatter. For an exact brand colour, give us the Pantone reference and we get as close as the material allows. Make the artwork for these labels the same size as the one you order, such as 96 × 68 mm. For reference, these labels measure 96 × 68 mm.
I have never ordered printing before. Do I need to know the technical words?
No. A person on our team checks every file for size, bleed and resolution and tells you in plain words if anything needs changing. The free online designer also warns you about small text and blurry images before you finish. Easier still, choose the free Artwork option for adding your details and we fill in the ready-made layout for you. Type your question into the box on this page and a person replies. Make the artwork for these labels the same size as the one you order, such as 96 × 68 mm. If you have no file, you can build the design for these labels in our free online designer and check every detail before ordering.
Which mistakes does the online designer warn me about?
Spelling is the one thing it cannot judge, so read that yourself. It does catch placeholder words nobody changed, tiny lettering, anything drifting beyond the safe area or near the trim, blurry logos and photos, and objects covering words. Issues that would spoil the print stop you finishing until they are sorted; lighter warnings you may choose to accept. Make the artwork for these labels the same size as the one you order, such as 96 × 68 mm. Nothing is printed ahead of time: each label is made to order for you.
Can I design these labels first and show the committee before we pay?
Yes. The online designer is free to use, so you can build the design, look at it on screen and share it round before anyone commits. The preview carries a watermark on screen only; it never appears on the printed item. When everyone is happy, finish the design and order. What you see is what gets printed, so check names, dates and numbers together first. Make the artwork for these labels the same size as the one you order, such as 96 × 68 mm. Nothing is printed ahead of time: each label is made to order for you.
No questions match. Try another word, or ask us below.
No reviews yet.
Review System Inhibitor Labels
How we handle reviews
Only people who bought the product can review it. Each review is checked against a real order and marked "Verified owner".
We publish every genuine review, good or bad, exactly as it was written. We never edit reviews or choose which ones to show. The only reviews we hold back are spam, abuse, or ones that include personal details like a phone number or email address.
The star rating is the average of every published review. We never pay for reviews or give discounts or gifts in return for them.
Reviews show the reviewer's first name and initial. To have your own review taken down, contact us.





