Diaphragm Pump Repair Kit Check Ball Material PTFE Compatible with Manufacturer Model Number Obsolete Diaphragm Material PTFE Number of Check Balls Not Applicable Number of Diaphragms 2 Number of O-Rings 8 Number of Seals 14 Valve Type Not Applicable Product Type Fluid End Repair Kit Media Intake Pressure (Maximum) 120 psi Compatible with Pump Type Air Operated Double Diaphragm Pump Includes Diaphragms Seals Media Temperature (Minimum) 40 Degrees F