Fluid End Repair Kit, Check Ball Material PTFE, Compatible Grainger Part Number 15U532, Compatible Manufacturer Model Number S15B3P2PPAS000, Diaphragm Material PTFE, Number of Check Balls 4, Number of Diaphragms 2, Number of O-Rings 0, Number of Seals 12, Valve Type Ball, Product Type Fluid End Repair Kit, Media Intake Pressure (Maximum) 100 psi, Compatible with Pump Type Air Operated Double Diaphragm Pump, Compatible with Brand Sandpiper, Standards Not Applicable. This item has been restricted from sale in the following state (s): []