Pentair GRO - 4 Stage - Reverse Osmosis System - Standard Filter Cartridges
The Pentair GRO-75 4-Stage Reverse Osmosis [RO] System is designed like no other system of it's type. It has the capacity to produce up to 75 gallons of pure water per day. This means a much faster tank-fill time vs normal systems. Also, the fast-fill rate allows you to have a smaller storage tank [2.0 gallons vs. 3.0 gals] which means less space requirement under your sink. It is also the most water efficient system on the market as well using less than 1 gallon of rejection water per 1 gallon of pure water produced - other systems can waste up to 7 gallons of water per 1 gallon of pure water produced. The system comes with a stand-alone drinking water faucet with your choice of finish [Chrome - Brushed Nickel - Satin Nickel - White - Black - Bronze]. Filters included with the Pentair GRO-75 system [Stage 1] - 5 micron sediment filter, [Stage 2] - carbon block pre-filter, [Stage 3] - 75 gal per day purification membrane, [Stage 4] - inline carbon post-filter]. Stage 1,2,4 filters should be changed yearly and stage is changed upon a purity test via your Free TDS Digital Tester. If you install a whole house water softener to your home's water treatment array, you can double the life of the RO filters since water will be pre-conditioned before entering the RO system.