4" x 40" | 2350 GPD | 100 psi | 99.2% Rej. | Hydranautics ESPA Ultra-Low Pressure Membrane (Replaces ESPA4-4040) Whole House Systems Replacement O-Ring for 4-Inch Membrane

Replacement O-Ring for 4-Inch Membrane Housing Pressure Vessel SS or PVC

the pressure will drop until the shut-off valve disengages

Temperature Range: 32°F to 104°F (0°C to 40°C)

DOW FilmTec TW30-1812-50

4" x 40" | 2350 GPD | 100 psi | 99.2% Rej. | Hydranautics ESPA Ultra-Low Pressure Membrane (Replaces ESPA4-4040) Whole House Systems Replacement O-Ring for 4-Inch MembraneHydranautics ESPA4 LD 4040 4" x 40" Membrane Element Combining energy efficiency with high rejection Hydranautics ESPA4 LD 4040 is the lowest feed pressure membranes offering low energy consumption. ESPA4 LD 4040 membranes require ultra low pressures without compromising high salt rejection and are commonly used in the second pass of a reverse osmosis system. The ESPA4 LD 4040 membrane is designed with Low differential (LD) Technology to minimize