![]() | FREE SHIPPING! On $50 and up. The more you buy, the more you save! (details) Major Requirements for RO systems![]() System Capacity: rate measured @ 50/60 psi & 77 deg F Tank Capacity: 3.2 gallons (unless specified otherwise) Feed Water pH: 3.0 -11.0 Feed Water Pressure: 40-95 psi Feed Water Temperature: 40-100 °F (4 - 38 °C) Max Total Dissolved Solids: 1800 ppm |