Product HighlightsThe Aprilaire® Water Panel® is the heart of your humidifier, designed specifically to deliver the proper humidity to your home for the entire length of the heating season. Annual replacement is needed for peak performance.
For Models 110, 220, 500, 550, 550A and 558.
California residents: see Proposition 65 Warning
Weight 0.76 Pounds Length 10.22 Inches Width 2.03 Inches Height 10.06 Inches Country of Origin USA Brand Aprilaire For Use With Models 110, 220, 500, 550, 558
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