Aprilaire Water Panel 35 A2 - Pack of 2

From the producer

If you have an Aprilaire Humidifier Model #110, 220, 500, 500A, 500M, 550, 558112, 224, 225, 440, 445, 448350, 360, 560, 568, 600, 600A, 600M, 700, 700A, 700M, 760, or 768400,400A,400M, you'll need to replace the water panel regularly. The water panel dimensions range from 10H x 9.75L x 1.75W to 14.75H x 11.5L x 1.75W, made of heavy-duty aluminum mesh with a porous ceramic-type coating. For models 400, 400A, and 400M, the water panel is composed of

Keep your Aprilaire humidifier performing at its best with the perfect water panel fit. Measuring 10" H x 13" L x 1.75" W, this aluminum panel is designed for optimal performance. Remember to change the water panel yearly to ensure peak efficiency. By maintaining a humidity level of 35% – 45% in your home, Aprilaire Humidifiers can help reduce respiratory infections, allergy symptoms, and asthma flare-ups. Installation is a breeze with included directions. Experience greater comfort and protect your belongings from damage caused by fluctuating humidity levels.