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The Aprilaire Scale Control Insert #4640 is the U-shaped component which encases the Water Panel Evaporator and is used in combination with water panel #10 and water distribution trap #4331. It is also part of the maintenance kit #4792. Actual Measurements: 11.143H x 3.44W x 10.44D (inches) Compatible Models 500 500A 500M
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🇺🇸 Ship from USA · On Agora since 2026
$31.99