3200 SERIES PRESSURE/VACUUM VENT WITH PIPE AWAY 4" INLET SIZE; 4" OUTLET SIZE, MATES WITH STANDARD ASME 150# FLANGED CONNECTIONS; RAISED FACE SST BODY & COVER, SST TRIM WITH BUG SCREEN FOR VACUUM SIDE; FEP-TFE PALLET DIAPHRAGM; WEIGHT MATERIAL ALL SST; ATEX CERT; NO OPTIONS;