Pvc Pipe Fitting,nova Automatic Vent, 1-1/2-in.

Eliminates expensive secondary vent stacks through the roof. Automatically works to prevent loss of trap seal. Made for use with sinks, basins, tubs, showers, vanities and washing machines. 1-1/2" Eliminates expensive secondary vent stacks through the roof Automatically works to prevent loss of trap seal Made for use w