31A4GCA33E00000000

3100 Series Rev C Pressure/Vacuum Relief Vent End-Of-Line; Mates With ASME 150 Flange Connection; 4" Flange Size; Hetron 800 Body Wtih Alloy C276 Studs; Integral Hetron 800 Seat Ring; FEP Pallet Diaphragm; 0.75 - 7.99 Oz/In2 Pressure Pallet Configuration; 0.75 - 7.99 Oz/In2 Vacuum Pallet Configuration; FRP Encapsulated Steel Weight Material; Standard Vacuum Protection Screen; Standard Cleaning Method