MemLine Flexible Couplings for pipe: #coupling Item no. STYLE PA Designed for Low Pressure System Pressure Rating: 100psi(7bar) Size: 3/4" - 4" Housing Material: ABS Bolts: 304SS or 316SS Nuts: 304SS or 316SS Gasket: EPDM rubber, C-shaped type standard, F-shaped type optional Application: . Brackish watertreatment . Permeate . MF . Waste water . UF . Low pressure RO . Membrane filtration #watertreatment Advantages: . Complete resistance of corrosion . Color: Excellent resistance of UV . Housing: Non-absorption of water . Light weight . Long lifetime.