Don't spend more than you need to for quality commercial reverse osmosis membranes. Hydron BW-4040 Membranes are a fantastic, affordable, compatible replacement for standard commercial 4" by 40" RO membranes.
Rated at 2,400 GPD, 220 PSI with 99.0% rejection and a minimum rejection rate of 98.5%, replacement for any standard 4040 commercial RO membrane, hard fiberglass shell protects membrane and provides outstanding performance.
These membranes remove contaminants and unwanted insolubles from your water. This membrane makes a great replacement for standard 4" x 40" commercial reverse osmosis membrane housings, compatible with GE Osmosis Desal AG4040FF, GE Osmosis Desal AG4040TF, Dow Filmtec TW30-4040, CSM RE4040-BE and TW30-4040.