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and the RO membrane in stage 3 (mind the direction arrows)
Replace all three cartridges every 4 to 6 months under normal municipal water conditions
Easy to Refill
A universal pre-filter replacement set engineered to fit the most popular under-sink reverse osmosis systems — iSpring
Watts-FSRO20 Flexwave Steel Tank for RO Storage, 16" x 29", 20 Gallon Capacity, 1"NPT BIG BLUE FILTER HOUSING and the RO membrane inWatts Professional Series Watts FSRO20 Flexwave 20 Gallon Steel RO Storage Tank Heavy duty reverse osmosis accumulator with oversize butyl diaphragm for high demand applications 20 30% Greater Capacity Than Standard Tanks 125 PSI Maximum Working Pressure All Stainless Steel Water Connection 100% Butyl Diaphragm The Watts FSRO20 Flexwave is engineered for commercial and high volume residential RO systems where larger pressure differentials and storage
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