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The SPACE-GARD 35 Humidifier Metal Water Panel Filter is the correct compatible replacement for the following models of Space-Gard/Aprilaire furnace humidifiers:
This Space-Gard humidifier water panel has approximate dimensions of 10" x 13 1/4" x 1 1/2". This metal water panel features honeycomb filtration that traps mineral pollutants. Filters Fast also carries a paper version of this filter, the Aprilaire 600 humidifier water panel paper filter. This Space-Gard water panel should be replaced every 6 months, or more often in areas with hard water.