The McAlpine VP50P Ventapipe 50 Air Admittance Valve is a plumbing device that is designed to allow air to enter the drainage system, while preventing foul odors from escaping into the building. Overall, if you are in need of an air admittance valve for your plumbing system, the McAlpine VP50P Ventapipe 50 with a dual fit synthetic rubber finger seal outlet is a great choice to consider.
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