Aprilaire A10W Water Pad for Aprilaire Models 9.875" x 9.5" x 1.5" Allergy and Sinus Medicine It expands to three racks

It expands to three racks that stack on top of each other so you can cool batches of cookies

This grill pan is crafted from extremely durable cast aluminum

3X less vibration for smoother operation

or bind-up to reduce kickback

Aprilaire A10W Water Pad for Aprilaire Models 9.875" x 9.5" x 1.5" Allergy and Sinus Medicine It expands to three racksWaterpad that fits: Aprilaire 110, 220, 550, 550A, 558 (10); Bryant HUMBBSBP 2212, 2312, 2412, HUMBASBP 2312, 2412; Carrier HUMCCSBP 2212, 2312, 2412, HUMBASBP 2312, 2412; Chippewa 220; Hamilton 12HF (EP037); Honeywell HE220A B, HE225A B; Lasko 5000L, 5000EC, 6000; Lennox WB2 12, WB2 12A; Totaline P110 SBP 2212, 2312, 2412