Whole House Humidifier Small Bypass - 12 gpd 3,500sqft

The Aprilaire model 500 humidifier is economical and a proven performer designed for small to mid-sized homes. The model 500 is installed in your central heating and cooling system ductwork by a local HVAC professional. The Aprilaire home comfort control is an attractive, easy-to-use touch screen that replaces your thermostat. It's Auto-Trac feature delivers optimal humidity automatically while also managing temperature, air purity and air freshness. It puts you in total control of your comfort.