Distilled Water – Ultra Pure H₂O for Steam Irons, Car Batteries, Humidifiers & Lab Use
Distilled Water – Ultra Pure H₂O for Steam Irons, Car Batteries, Humidifiers & Lab Use
Description
ONYX Distilled Water is water that has been boiled into steam and condensed back into liquid, leaving minerals and impurities behind. With nothing left to form limescale or white dust, it keeps appliances and equipment cleaner and working for longer.
Popular uses
- Steam irons and garment steamers: no scale build-up or white flakes on clothes (check your iron's instructions)
- Car batteries and cooling systems: topping up serviceable lead-acid batteries and mixing with coolant
- Humidifiers and diffusers: no white mineral dust on furniture
- Diluting: mixing with IPA, hydrogen peroxide and castile soap
- DIY cosmetics and soap making: consistent, predictable results
- Aquariums, plants and lab work: a clean, mineral-free base
Why not tap water?
Much of the UK has hard water. When it heats up or evaporates it leaves limescale, which blocks steam vents, shortens appliance life and leaves white dust. Distilled water doesn't.
Sizes
Available in 100ml, 250ml, 500ml, 1 Litre, 2 x 1 Litre, 5 Litre and 4 x 5 Litre. A busy household can use several litres a month, so 5L and 4 x 5L are the best value per litre.
Good to know
Sold for household, automotive and lab use, not as drinking water. Keep the cap closed and store out of direct sunlight.
Delivery and returns
Free standard UK delivery (2-3 working days) on orders over £30. Under £30, standard delivery is from £2.99. Express delivery (1-2 working days) is available at checkout from £3.85, priced by weight. Scotland and Northern Ireland: £1.99 extra on paid delivery.
30 day money back guarantee.
Safety & hazards
Not classified as hazardous under GB CLP. Handle with normal care.
Safe handling
- Not for drinking.
- Store in a cool, dry place.
Summary only. Always read the label and the safety data sheet before use.
Download safety data sheet (PDF)Ideal for
Popular uses, plus many more. Always check it's suitable for your application.
Price per litre by size
Larger sizes cost less per litre.
| Size | Price | Per litre | vs 100ml |
|---|---|---|---|
| 100ml | $3.00 | $30.00/L | – |
| 250ml | $5.00 | $20.00/L | Save 33% |
| 500ml | $6.00 | $12.00/L | Save 60% |
| 1 Litre | $9.00 | $9.00/L | Save 70% |
| 2x 1 Litre | $14.00 | $7.00/L | Save 77% |
| 5 Litre | $21.00 | $4.20/L | Save 86% |
| 2 x 5 Litre | $39.00 | $3.90/L | Save 87% |
| 4 x 5 Litre | $67.00 | $3.35/L | Save 89% |
How to use Distilled Water, Ultra Pure H2O
Short how-to videos for home, salon and trade.
Steam irons without limescale
No minerals, so no scale and no white flakes on clothes.
Topping up car batteries
Top up serviceable lead-acid cells to the level line.
Humidifiers and diffusers
A fine mist with no white dust on your furniture.
Diluting with distilled water
Popular mixes for IPA, hydrogen peroxide and castile soap.
Distilled Water, Ultra Pure H2O: your questions
Still not sure? Ask us ›
How is distilled water different from tap water?
Distilled water is boiled and condensed, which leaves the minerals and impurities behind. With no minerals, it won't leave limescale or white dust.
Is distilled water the same as deionised water?
Both have the minerals removed, but in different ways. Distilled water is boiled and condensed, while deionised water is passed through ion-exchange resins. Either suits most irons, batteries and cooling systems.
Is it safe for steam irons?
Yes, it helps stop limescale building up. Check your iron's instructions, as a few makers suggest mixing distilled and tap water.
Can I use it in a humidifier or diffuser?
Yes. Distilled water stops the white mineral dust that ultrasonic humidifiers can leave on furniture. Check your machine maker's instructions.
Can I use it in my car?
Yes. Use it to mix with antifreeze or coolant at the ratio your car maker recommends, and to top up lead-acid batteries.
Is it good for soap making and cosmetics?
Yes. Makers use distilled water in lotions, toners and soap because tap water can carry minerals that affect the finished product.
Can I drink it?
It is sold for household, automotive and lab use, not as drinking water.
How long does it keep?
Kept sealed and out of sunlight it keeps well. Once opened, close the cap tightly and use it within a few months for the best purity.
What sizes is it available in?
It comes in 100ml, 250ml, 500ml, 1 Litre, 2x 1 Litre, 5 Litre, 2 x 5 Litre and 4 x 5 Litre. The larger sizes and multi-packs work out cheaper per litre.
How much is UK delivery?
Standard UK delivery (2 to 3 working days) is free on orders over £30. Under £30 it starts from £2.99, and express delivery (1 to 2 working days) is available at checkout from £3.85. Paid delivery to Scotland and Northern Ireland is £1.99 extra.
Where can I get the safety data sheet?
You can download the safety data sheet (SDS) for this product from the Documents section on this page. If you need it in another format, email us at contact@ukonyx.com.
Do you offer bulk or trade prices?
Yes. Our 5 litre and 4 x 5 litre packs give the lowest price per litre on our site, and we offer trade pricing on orders of 100 litres or more. Email contact@ukonyx.com for a quote.
Can I return it?
Yes. We offer a 30 day money back guarantee. Email us at contact@ukonyx.com and we'll help.
Goes well with
Use it to dilute hydrogen peroxide, IPA and castile soap.
