Resideo 50028044-001 Humidifier Filter 320074-702 also known as the A4F-D

also known as the A4F-D filter drier cartridge

This genuine Nordyne part is compatible with a wide range of brands under the Nortek Global HVAC umbrella

Efficient Downstream Relieving: The relieving design safely vents downstream pressure to prevent equipment over-pressurization

Key Benefits Engineered for Propane: Factory-calibrated for LP gas applications to provide stable 10" W

this coil is strictly designed for 24V AC power sources

Resideo 50028044-001 Humidifier Filter 320074-702 also known as the A4F-DThe Resideo 50028044 001 In Line Humidifier Filter is a critical component designed to manage scale and sediment buildup in residential and commercial humidification systems. Engineered for high volume filtration, this inline water filter monitors mineral content to prevent nozzle clogging and calcification on heating elements. It is a universal solution, serving as a direct Honeywell humidifier filter replacement for all steam and evaporative models,