STUDOR® MINI-VENT® Air Admittance Valve, 1-1/2 or 2 in Nominal Size, ABS Body, 2 in Dia x 2-5/8 in L
The unique design of the STUDOR® MINI-VENT® provides plumbing ventilation to prevent the loss of water seals in traps without the need for costly roof penetration and vent piping.