SCALE INSERT FOR MODEL 560/A USED IN MODELS HCWP3-18, HCWP3-18A, WB2-17, WB2-17A, WP2-18, WP2-18A.
(1) - Lennox Humidifier Scale Control Insert (21N39)
Dimensions (LxW): 14 3/8" x 10"
Replaces Old Lennox Part Numbers:
Replaces Old Allied, Armstrong, Concord, Ducane Part Numbers:
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