3544ABF00000000000-225

3500 Series Pressure Vent With Pipe-Away; 4" Inlet Size; 4" Outlet Size, Mates With Standard ASME 150# Flanged Connections; Flat Face Aluminum Body & Cover, Aluminum Trim; Fluorocarbon Elastomer (Fkm) Pallet Diaphragm; Standard Weight Material Steel Or Combination Of Steel And SST; Special For GO Model 73-13563-A2 Proximity Switch; Engineering Lab To Confirm Calibration