Replacement Diaphragm, Compatible with Grainger Part Number 2P774, 5U664, Compatible with Manufacturer Model Number 666100-244-C, 6661A3-344-C, Material PTFE, Media Intake Connection Type Not Applicable, Product Type Replacement Diaphragm, Compatible with Pump Type Diaphragm Pump, Compatible with Series Pro-Series, Compatible with Brand ARO, Media Temperature (Maximum) Not Applicable, Media Temperature (Minimum) Not Applicable.