Reverse Osmosis Water — 20 Litres
Ultra-pure 0 TDS water for freshwater and marine aquariums, delivered to your door.
Our RO water removes 99% of impurities including chlorine, heavy metals, nitrates, and phosphates — giving you a blank canvas to create the perfect water chemistry for your tank.
What's Included
-
20 litres of freshly filtered RO water
-
2 x 10L jerry cans (yours to keep or return for credit)
-
Overnight courier delivery (allow up to 48 hours)
Why Aquarists Trust Our RO Water
Ultra-Pure Quality
Filtered to 0 TDS — as pure as water gets, free from chlorine, chloramine, and heavy metals.
Total Control
Start with a clean slate — add your own minerals for marine setups or use as-is for freshwater tanks.
Consistent Every Time
Advanced filtration technology ensures reliable, predictable water quality with every order.
Prevents Problem Algae
No phosphates, silicates, or nitrates means fewer algae outbreaks and a cleaner tank.
Perfect For
- Freshwater aquariums (use as-is or remineralise)
- Mixing saltwater for marine & reef tanks
- Top-offs to replace evaporated water
- Auto top-up systems (ATO)
- Dosing and supplements dilution
- Cleaning equipment without mineral deposits
Save on Every Order
Return your empty jerry cans and get £12 store credit for every 6 barrels.
Drop off at Evri for just £2.62 — that's £9.38 back in your pocket.
Add a free returns bag to your order →
Need NSW Too?
We can deliver RO water and Natural Sea Water together — just add both to your cart or drop us a message to combine orders.
Freshly Filtered, Fast Delivery
All water is filtered fresh before dispatch to ensure the purest quality. Same-day dispatch on orders before 3pm (Tues-Sat).
