#4640 Aprilaire Scale Control Insert
For use with Aprilaire model 500.
This is the u-shaped component which encases the Water Panel Evaporator.
Directs any mineral which builds up back into the evaporative panel.
Prevents water from leaving the evaporative section and entering another portion of the humidifier.
AirFilters.com
AirFilters.com is your choice for Aprilaire replacement parts. This Aprilaire Scale control insert is for use with Aprilaire model 500. This is the u-shaped component which encases the Water Panel Evaporator. Their purpose is to direct any mineral which builds up back into the evaporative panel. They prevent water from leaving the evaporative section and entering another portion of the humidifier.
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