Model 224

AprilAire 12 Replacement Water Panel Humidifier Filter For Humidifier Models: 112, 136, 224, 225, 440, 445, 445A, 448

AprilAire 4004 In-Line Strainer for Humidifier Models 220, 224, 350, 360, 400, 400A, 400M, 500 Series, 600 Series, and 700 Series