BestAir A10-6 Aprilaire 10 Metal Waterpad
Furnace Water Pad fits Aprilaire 110, 220, 500, 550, 550A, 558 (10); BestAir BA3200G; Desert Spring DSP-PFT; Hamilton 12HF (EP037); Thermolec 500/550/Pro 600; Evolution Air Pro3000; Honeywell HE100A, HE150A, HE220A/B, HE225A/B; Lasko 5000L, 5000EC, 6000, Lennox WB2-12, WB212; Chippewa 220