3200 SERIES PRESSURE/VACUUM VENT WITH PIPE AWAY 4" INLET SIZE; 4" OUTLET SIZE, MATES WITH STANDARD ASME 150# FLANGED CONNECTIONS; RAISED FACE CARBON STEEL BODY & COVER, SST TRIM, WITH BUG SCREEN FOR VACUUM SIDE; FEP-TFE PALLET DIAPHRAGM; WEIGHT MATERIAL ALL SST;