Fluid Panel #12 4 Pack for Aprilaire 440 445 Humidifier Pad Filter

4 Pack of Furnace Humidifier Filter / Fluid Panel Pad, Part number A12. Coated Filter measures, 14-5/8" long x 11-1/2" wide x 1-3/4" thick. These filters fit : Aprilaire Models 112, 136, 224, 440, 445. Manufactured in USA.