Distilled Water - 100% Ultra Pure H₂O

ONYX Distilled Water, featuring an ultra-pure H₂O compound, is a versatile solution catering to various needs. Trusted for steam irons, aquariums, car cooling systems, laboratory experiments, and certain medical devices, it stands as a benchmark for purity and reliability. Elevate your requirements with ONYX Distilled Water, ensuring optimal performance and precision in every application.

Distilled Water - 100% Ultra Pure H₂O

ONYX Distilled Water, featuring an ultra-pure H₂O compound, is a versatile solution catering to various needs. Trusted for steam irons, aquariums, car cooling systems, laboratory experiments, and certain medical devices, it stands as a benchmark for purity and reliability. Elevate your requirements with ONYX Distilled Water, ensuring optimal performance and precision in every application.
GradeUltra pure
CAS7732-18-5
£2.99 £29.90/L
Price includes VAT. Free UK delivery on orders over £30.
Size: 100ml
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DeliveryFree UK delivery over £30
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Buying in bulk?Trade prices on 100L+
Description
ONYX Distilled Water, featuring an ultra-pure H₂O compound, is a versatile solution catering to various needs. Trusted for steam irons, aquariums, car cooling systems, laboratory experiments, and certain medical devices, it stands as a benchmark for purity and reliability. Elevate your requirements with ONYX Distilled Water, ensuring optimal performance and precision in every application.
Delivery and returns

Free UK delivery on orders over £30. Free express UK delivery on orders over £40.

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.

Ideal for

Steam irons
Car cooling systems
Aquariums
Humidifiers
Lab & science
Battery top-up
Coffee machines
Screenwash mixing
DIY skincare
Streak-free cleaning

Popular uses, plus many more. Always check it's suitable for your application.

Price per litre by size

Larger sizes cost less per litre.

SizePricePer litre
100ml£2.99£29.90/L
250ml£3.99£15.96/L
500ml£4.99£9.98/L
1 Litre£6.99£6.99/L
5 Litre£16.99£3.40/L
4 x 5 Litre£39.99£2.00/L
Product FAQ

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 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 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.

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.