3300 Series Rev C Vacuum Relief Vent End-Of-Line; Mates With ASME 150 Flange Connection; 2" Inlet Size; Derakane 470 Body And Integral Seat Ring With 316 Stainless Steel Studs; FEP Seal Material; 0.50 - 0.74 Oz/In2 Vacuum Pallet Configuration; Epoxy Coated Carbon Steel Weight Material; Standard Vacuum Protection Screen; Standard Cleaning Method