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Jones Stephens 1-1/2 In. MPT ABS Vent Valve
Item Details
Eliminates expensive secondary vent stacks. Can be used for sinks, basins, tubs, showers, vanities, and washing machines - not to be used for toilets. 1-1/2' Male pipe threads. Packed 1 per box with installation instructions. Each drainage system using a Mechanical vent must have a main vent stack to atmosphere (through the roof) located so as to vent the water closet. Do not install the mechanical vent in sealed wall cavity - install in a readily accessible location. Installation limited to structures not exceeding 2 stories in height and without corrosive water.
