Water Treatment ComponentsPressure RegulatorContact Us to PurchaseFeatures Lower inlet water pressure to prevent leaking. Protect water purifiers, RO systems and coffee machines from damage by water hammer. Quick connector, easy maintenance. Specification Model Type Spec Remark SV-0140 pressure regulator, quick connect 1/4 OD x 1/4 OD, straight, 40PSI plastics SV-0139 pressure regulator, quick connect 3/8 OD x 3/8 OD, straight, 40PSI plastics SV-0138 pressure regulator, quick connect 1/4 OD x 1/4 OD, straight, 70PSI plastics SV-0137 pressure regulator, quick connect 3/8 OD x 3/8 OD, straight, 70PSI plastics ApplicationSuitable for use in RO drinking systems.