4S QGD (EPDM) submersible pump valve diaphragm 82*93

Rudes, IBO SQIBO 0.75, APC, Sprut 4S QGD (EPDM) 0.5-, 1.2-50-0.37 borehole submersible pump check valve diaphragm, diagonal hole spacing is ~72~82 mm. Outer diameter 93 mm