Winder® frp membrane housing pressure vessels 4" End Entry Design Available in 300 psi, 450Psi, 600Psi, 1000Psi, 1200Psi, pressure rating Accommodates standard make 4" Membrane Element Applicable to: DOW, HYDRANAUTICS, OSMONICS, KOCH, TORAY, CSM, VONTRON, BDX, etc. Standard: ASME RP, CE, ISO9001, ISO14001, UL/NSF Specification Winder® frp membrane housing pressure vessels 4" End Entry Design Available in 300 psi, 450Psi, 600Psi, 1000Psi, 1200Psi, pressure rating Accommodates standard make 4" Membrane Element Applicable to: DOW, HYDRANAUTICS, OSMONICS, KOCH, TORAY, CSM, VONTRON, BDX, etc. Standard: ASME RP, CE, ISO9001, ISO14001, UL/NSF 4 Inch End Entry frp pressure vessels Key Features: Operating Temp Range: -10°C ---49°C Internal permeate port not to exceed 125PSI(0.88 MPa) Operating pH Range: 3 - 11 Cleaning pH Range: 2 - 12 (less than 30 minutes) Mirror inner wall and brightly surface. BSPP/NPT thread available White color is as standard. Customized colors are also available. ASME Code stamp available upon request