1-1/2" - 2" Air Admittance Valve for Black ABS Drain Systems

Allows air to enter the drainage system, while preventing sewer gases from entering the building. Eliminating the hassle and expense of connecting drain fixtures to an external vent line.

Features:

• Injection molded ABS
• No external venting required
• Opens under negative pressure and remains closed if there is positive or ambient air pressure
• Ideal for island kitchen sinks, bathroom sinks, bar sinks, bath tubs and renovation projects
• Threaded body allows for easy drain system access or valve cleaning
• Eliminates having to install new vent lines through the roof