Reverse osmosis tanks

A reverse osmosis membrane filters water slowly, so purified water collects in a storage tank and flows to the kitchen faucet from there. If the tank holds too little water or you need a bigger reserve, you can replace it or fit a larger one.

GWS RO-Wave tanks fit most household systems: a standard threaded connection, a food-grade diaphragm and 0.4–0.5 bar of air pre-charge when empty. A family kitchen usually needs an 8–12 L tank; an office or a large family, more.

How to connect the system and the tank yourself is explained in “Under-sink reverse osmosis”.