Key Benefits Broad Compatibility: Rated for single-phase and three-phase motors

requiring a 30-second delay

Compatibility: Designed as a direct drop-in for Carrier

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

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

Aprilaire 4218 Distribution Tray 322838-752 Key Benefits Broad Compatibility: RatedThe 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