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Ozmosis 4"x21" 304 Stainless Steel RO Membrane Housing Pressure Vessel, 300psi, 1/2" FNPT Feed, Drain and Permeate Ports, Double O-ring Caps and Brackets included

Ozmosis Standard 4" x 40" Stainless Steel RO Membrane Housing Vessel End Cap with O-Ring 3/4" x 1/2" NPT Ports, Ideal Replacement Part for Water Filtration Systems

APPLIED MEMBRANES, INC. 4x40 Commercial RO Membrane Housing | Stainless Steel RO Pressure Vessel for 4" x 40" RO, UF, NF, MF Membrane Element | 300 PSI | End Clamp Style | PV4040SSAW-316

RO Membrane Housing Stainless Steel Pressure Vessel 4"x40" 4040 300 PSI 3/4" Feed and Drain Ports 1/2" Permeate Ports

Membrane Cap End for 4" Bottom Diameter with 2 O-Rings for 4040 and 4080 RO Membrane Housing Pressure Vessel

Ozmosis RO Pressure Vessel Membrane 4040 4" x 40" Fiberglass Housing - 3/4" x 1/2" Ports Industrial Grade, 300 PSI, Rust-Resistant, Complete Kit with Plastic Clamps and Brackets

Blulu 304 Stainless Steel Reverse Osmosis Compatible with 4040 Membrane Housing Heavy Duty 4"x40" Commercial Ro Membrane Pressure Vessel Good for Industrial Use

Max Water 2.5 x 21 RO Membrane Housing, Heavy Duty 304 Stainless Steel Pressure Vessel, 2521 Commercial Reverse Osmosis, 250 PSI, 3/8" NPTF Ports, With Complete Installation Set