5 Stage 75 GPD Reverse Osmosis System (For Safe-to-Drink Tap Water)Looking to make your Tap Water drinkable? Check out our Reverse Osmosis Water Filtration system How does it work? There are 5 stages to our 5 stage 75 gallons per day Reverse Osmosis Water Filtration system: Stage 1: PP Sediment Filter Removes Dust, Sand, Algae & Rust Stage 2: Granular Carbon Filter Removes Chlorine, Odours, Tastes and Suspending Particles Stage 3: Carbon Block Filter Further Removes Residual Odours, Chemicals, Tastes, Chloramine and