Repair Kit, Check Ball Material PTFE, Compatible with Grainger Part Number 6CCR5, Compatible with Manufacturer Model Number PD20E-FES-PTT, PD20P-FKS-KTT, PD20P-FPS-PTT, PE20P-FKS-KTT-AD0, PE20P-FPS-PTT-A00, PE20P-FPS-PTT-A0L, PE20P-FPS-PTT-AD0, PE20P-FPS-PTT-ADF, PE20P-FPS-PTT-AS0, Diaphragm Material PTFE, Number of Check Balls 4, Number of Diaphragms 4, Number of O-Rings 20, Number of Seals 28, Valve Type Ball, Product Type Fluid End Repair Kit, Media Intake Pressure (Maximum) 120 psi