3100 Series Pressure/Vacuum Vent VTA; ASME 150 Flange Connection; 8" Inlet Size; Aluminum Body, 316 SST Bolt-In Seat Ring; Fep-Tfe Pallet Diaphragm; Less Than Or Equal To 0.49 Oz/In2 Pressure Set Point; Less Than Or Equal To 0.49 Oz/In2 Vacuum Set Point; Weight Material All SST; With Bug Screen