Fluid End Repair Kit, Check Ball Material Santoprene, Compatible with Grainger Part Number 4GGF44GGF6, Compatible with Manufacturer Model Number E2SA6X660C-ATEX, Diaphragm Material Santoprene, Number of Check Balls 4, Number of Diaphragms 2, Number of O-Rings 0, Number of Seals 0, Valve Type Ball, Product Type Fluid End Repair Kit, Media Intake Pressure (Maximum) 125 psi, Compatible with Pump Type Air Operated Double Diaphragm Pump, Compatible with Brand Versamatic, Standards Not Applicable. This item has been restricted from sale in the following state (s): []