3100 SERIES PRESSURE/VACUUM VENT VTA ASME 150 FLANGE CONNECTION; 4" INLET SIZE; ALUMINUM BODY, ALUMINUM BOLT-IN SEAT RING; FEP-TFE PALLET DIAPHRAGM; 0.75 OZ/IN2 AND ABOVE PRESSURE SET POINT RANGE; 0.75 OZ/IN2 AND ABOVE VACUUM SET POINT; WEIGHT MATERIAL ALL SST; WITH BUG SCREEN; PED COMPLIANCE REFER TO DIRECTIVE 2014/68/EU.;