Flame arrestor protects contents;
Fits 2" NPS bung in steel and plastic drums;
Use for corrosives and general solvents.
Maxi­mum flow of 220 CFM at 20 PSI;
FM approved vent for use with drums in the hori­zontal (pouring) position;
Automatically relieves pressure at 5 PSI;
Manual vacuum relief by lifting and rotating valve stem;