Check the listing for details. A10 #10 for Aprilaire 110 220 500 550 Water Panel Filter Humidifier Pad. Condition: New. Listed at 18.78 USD. A10 #10 for Aprilaire 110 220 500 550 Water Panel Filter Humidifier Pad Furnace Humidifier Filter / Water Pad, Part number CA10.This Coated Filter measures, 10" long x 9-1/2" wide x 1-1/2" thick.Coated for Proper Water Distribution.Colored Spot on Pad. These filters fit :Aprilaire Models: #10, 110, 220, 500, 500A, 550, 550A, 558.Honeywell Models: HE220A, HE220B, HE225A, HE225B.Lasko Models: 5000L, 5000EC, 6000.Hamilton Model: 12HF.Bryant Models: HUMBBSBP2212, HUMBBSBP2312, HUMBASBP2312, HUMBBSBP2412, HUMBASBP2412.Carrier Models: HUMCCSBP2212, HUMCCSBP2312, HUMCASBP2312, HUMCCSBP2412, HUMCASBP2412Lennox Models: WB2-12, WB2-12A Healthy Climate Models: HCWB2-12, HCWB2-12A Totalline Models: P110-SBP2212, P110-SBP2312, P110-SBP2412.Manufactured in USA. Product Details BrandBestAir ProManufacturerBestAir ProProduct TypeWater FiltersMpnA10 Furnace Humidifier Filter / Water Pad, Part number CA10Coated Filter measures, 10" long x 9-1/2" wide x 1-1/2" thickAprilaire Models: #10, 110, 220, 500, 500A, 550, 550A, 558. Check out my other items. -Powered by