STUDOR MINI-VENT Air Admittance Valve, 1-1/4" - 2"
The STUDOR MINI-VENT fits piping systems of 1/4", 1-1/2" and 2" diameters. The STUDOR MINI-VENT may serve up to 20 drainage fixture units including water closets, i.e., more tha a normal bathroom group.