Repair Kit, Check Ball Material Buna-N, Compatible with Grainger Part Number 3FPR1, Compatible with Manufacturer Part Number 666250-G22-C, 666252-G22-C, 66625C-G22-C, 666270-G22-C, 666271-G22-C, 666272-G22-C, 66627B-G22-C, 66627C-G22-C, Diaphragm Material Buna-N, Number of Check Balls 4, Number of Diaphragms 2, Number of O-Rings 5, Number of Seals 5, Valve Type Ball, Product Type Fluid End Repair Kit, Media Intake Pressure (Maximum) 120 psi