I have a mavrick radon mitigation fan (4″ inlet and outlet) I planned on using 3: pipe for radon mitigation but 2″ is half the price as 3″ pipe. Can… I have a mavrick radon mitigation fan (4″ inlet and outlet) I planned on using 3: pipe for radon mitigation but 2″ is half the price as 3″ pipe. Can…Read MoreGreenBuildingAdvisor

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