Pure, Alkaline Water On Demand — The Keen 800G Tankless Reverse Osmosis System
Tired of buying bottled water or lugging home 5-litre jugs? The Keen 800G gives your household direct drinking water quality straight from the tap — filtered through six stages, remineralised to alkaline, and flowing at a rate that puts traditional RO systems to shame.
Six-stage filtration, built for serious purification
The Keen 800G runs your water through six distinct filtration stages, including a dedicated RO reverse osmosis membrane, stripping out dissolved solids, heavy metals, chlorine, nitrates, and bacteria. What comes out the other side meets direct drinking water quality — no boiling, no bottles, no compromises.
800G high flow — water when you need it
Most traditional under-sink RO systems produce around 50 GPD. The Keen 800G produces 800 gallons per day — sixteen times the output — with consistent, fast flow every time you open the tap.
Tankless design — reclaim your under-sink space
No bulky storage tank. The Keen's compact, tankless body saves significant space under your kitchen cabinet and eliminates the risk of stagnant water sitting in a pressurised tank.
1.5:1 low waste water ratio
Traditional RO systems are notoriously wasteful, draining up to 3 litres for every 1 litre filtered. The Keen 800G operates at a 1.5:1 ratio — producing 1.5 litres of clean water for every 1 litre of waste. That's far better for your water bill, and if you connect the reject line to your roof tank, it qualifies you for the 40% REWS government grant.
Smart features you'll actually use
TDS display — see your water quality in real time
Filter replacement reminder — the system tells you when it's time
3-second filter change — no tools, no plumber, no downtime
Output: alkaline water
Unlike standard RO systems that output neutral or slightly acidic water, the Keen 800G remineralises and alkalises the filtered water — restoring calcium and magnesium for a taste that's clean, smooth, and noticeably better than plain purified water.