The Aprilaire Scale Control Insert 4640 is the U-shaped component which encases the Water Panel Evaporator. Used with water panel number 10 and water distribution tray part number 4331. For Models 500, 500A and 500M.
$18.00
each
2 In Stock
or for lower prices and free shipping.
Drain hole down oriented
Specifications
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Type: Replacement
Color: Black
Dimensions: 10-7/8 in H x 10-1/2 in W x 2-5/8 in Thk
Material: Polypropylene
Series: Aprilaire®
Suitable For Use With: For Use With: Model 500 Humidifier