Aprilaire 800 Install Conundrum -- supply or return? With photos : r/hvacadvice
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Amazon.com: AprilAire 800 Whole-House Steam Humidifier, Automatic Steam Humidifier, Large Capacity Whole-House Humidifier for Homes up to 10,300 Sq. Ft., White : Home & Kitchen
Amazon.com: AprilAire 800 Whole-House Steam Humidifier, Automatic Steam Humidifier, Large Capacity Whole-House Humidifier for Homes up to 10,300 Sq. Ft., White : Home & Kitchen