Diaphragm Pump Service Kit, Check Ball Material PTFE, Compatible with Grainger Part Number 6CCP4, 6CCP7, Compatible with Manufacturer Model Number PD30A-AAP-FTT-C, PD30A-ASS-STT-C, Diaphragm Material PTFE, Number of Check Balls 4, Number of Diaphragms 4, Number of O-Rings 12, Number of Seals 16, Valve Type Ball, Product Type Fluid End Repair Kit, Media Intake Pressure (Maximum) 120 psi, Compatible with Pump Type Air Operated Double Diaphragm Pump, Compatible with Brand ARO