Diaphragm Pump Repair Kit, Check Ball Material Buna-N, Compatible with Grainger Part Number 22A592, 6PY43, 6PY43B, Compatible with Manufacturer Model Number 22A592, 6PY43, 6PY43B, Diaphragm Material Buna-N, Number of Check Balls 4, Number of Diaphragms 2, Number of O-Rings 12, Number of Seals 0, Valve Type Ball, Product Type Fluid End Repair Kit, Media Intake Pressure (Maximum) Not Applicable, Compatible with Pump Type Air Operated Double Diaphragm Pump, Compatible with Brand Not Applicable