Aprilaire 4407 Water Distribution Tray 340155-7024 This model features a unidirectional

This model features a unidirectional pressure range of 0 to 0

eliminating the need for manual DIP switch adjustments during installation

The UGLK1000 is suitable for both hot/chilled water and steam applications

Is the 66J78 interchangeable with the 66J7801

it prevents shaft misalignment and premature bearing wear—common failure points in high-static pressure applications

Aprilaire 4407 Water Distribution Tray 340155-7024 This model features a unidirectionalThe Aprilaire 4407 Water Distribution Tray is a critical component for maintaining the efficiency of your whole house humidifier. Specifically engineered for the Aprilaire Model 400 series, this OEM replacement part ensures that water is evenly dispersed across the evaporative capacity of the water panel. Featuring a specialized pumice coating, the tray prevents water from "beading" and instead facilitates a uniform flow, which is essential for