Wesco Horizontal Drum Vent, 2", Brass (272030)

Horizontal Drum VentMaxi­mum flow of 220 CFM at 20 PSI;Fits 2" NPS bung in steel and plastic drums;Automatically relieves pressure at 5 PSI;FM approved vent for use with drums in the hori­zontal (pouring) position;Use for petroleum based applicationsFlame arrestor protects contents;Manual vacuum relief by lifting and rotating valve stem;