Aprilaire Humidifier Scale Control Insert, Series 400

$45.47

Aprilaire 4403 Humidifier Scale Control Insert. Use with 400, 400A and 400M Humidifiers. The Control Insert 4403 is the U-shaped component which encases the Water Panel. It directs any built-up mineral deposits back into the water panel, and it prevents water from leaving the wet-pack section and entering another portion of the humidifier

1 in stock

SKU: 4403
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This product is not used in any models.