4"&times;40" Filmtec TW30 Membrane, 2,400 GPD TW30-4040 Flow Rate: 2400 Gal/Day (9084 L/Day) Size: 4" Dia x 40" Length Flow Rated at Pressure: 225 PSI (15.5 bar) Stabilized Salt Rej.: 99.5% Tap Water