OEM Compatibility: Guaranteed fitment for Heil Quaker parts and various International Comfort Products (ICP) platforms

By addressing common wear points such as degraded O-rings and seats

The vacuum-actuated diaphragm is calibrated for high-cycle reliability in demanding environments

this manual reset pressure switch features a set point range of 1-7 PSI

requiring a 30-second delay

Aprilaire 4218 Distribution Tray 322838-752 OEM Compatibility: Guaranteed fitment forThe Aprilaire 4218 Distribution Tray is a critical internal component designed specifically for the Aprilaire 500 series humidifier, including models 500, 500A, and 500M. This genuine Aprilaire humidifier part plays a vital role in maintaining peak HVAC humidity control by ensuring water is evenly dispersed across the water panel. Constructed from durable, heat resistant plastic, the Aprilaire 4218 features a calibrated design that prevents dry spots