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Drain Air Vents & Valves
Drain air vents and valves allow air to enter drain, waste, and vent (DWV) systems to regulate and equalize pressure, preventing water used to seal out sewer gases and odors from draining out of traps.
Drain Air Vents & Valves
Drain air vents and valves let air enter drain, waste, and vent (DWV) systems to equalize and regulate pressure when water drains out of the system. Also called plumbing vents, they prevent contamination of potable water lines from waste water discharged by garbage disposals and allow water to flow freely through drainage systems.
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