Best Air Evaporator Pad Higher Output Designed To Fit Aprilaire Models; 350 , 360 , 560 , Go to amazon.com Related posts Thing need consider when find furnace water filter 35? FeatureRps ProductsA35W-PDQ-66NEW3 DescriptionHigher Output Furnace Humidifier Water Pad, Fits Aprilaire 350, 360, 560, 560a, 568, 600, 700, 760, 760A, 768, #35 and 400A.