4200 Series Spring Loaded Pressure/Vacuum Vent W/ Pipe Away; ASME 150 Flange Connection; 2" Inlet And 2" Outlet; Carbon Steel Body, 316 SST Bolt-In Seat Ring; Fep-Tfe Pallet Diaphragm; Spring Loaded; >13-15 PSIG Pressure Set Point; Weight Loaded; 2.00 And Above Oz/In2 Vacuum Set Point; Standard Weight Material Steel Or Combination Of Steel And SST; With Bug Screen