PTFE Diaphragm Upgrade Kit Compatible with Grainger Part Number 806ZT1 Compatible with Manufacturer Model Number FD3111 Material PTFE Media Discharge Connection Size 3/4 in Media Discharge Connection Type NPT Media Intake Connection Size 1/2 in Media Intake Connection Type NPT Product Type Diaphragm Valve Type Ball Compatible with Pump Type Air Operated Double Diaphragm Pump Compatible with Series 2150 Compatible with Brand SaniForce Media Temperature (Maximum) 220 Degrees F