Aprilaire 600M Humidifier 328140-751 While the 1085424 fits many

While the 1085424 fits many models

Smith Armor 500 series without needing field modifications

this HVAC contactor replacement prevents premature equipment failure

Check your unit's data plate

The 47K30 is specifically balanced and specced for Lennox HVAC systems to meet OEM performance curves

Aprilaire 600M Humidifier 328140-751 While the 1085424 fits manyThe Aprilaire 600M Humidifier is a high performance whole house bypass humidifier engineered to deliver optimal moisture levels throughout your living space. Capable of humidifying up to 4,000 square feet in tightly constructed homes, this unit features a 17gpd bypass humidifier manual configuration that outputs approximately 0. 7 gallons per hour. Designed for seamless integration with your HVAC system, it uses a built in bypass damper and a water