3300 SALES KIT FOR PRODUCT CODE: 33B2PBA00000000000; SERIES END OF LINE VACUUM RELIEF VENT INTERMITTENT BACK PRESSURE 50 PSIG MAX; 2" LINE SIZE, MATES WITH STANDARD ASME 150# FLANGED CONNECTION; RAISED FACE CARBON STEEL BODY & COVER, SST TRIM WITH BUG SCREEN; FEP-TFE PALLET DIAPHRAGM