Aprilaire® 45 Replacement Humidifier Filter, 12-3/4 in H x 10 in W x 1-3/4 in D, Domestic

• GENUINE APRILAIRE WATER PANEL Designed for the exact specifications of AprilAire Humidifiers for a perfect fit, maximum evaporative capacity, and to help prevent leakage
• Compatible models include 400, 400A, and 400M
• WATER SAVING The 45 Water Panel features wicking technology that maximizes efficiency by allowing the humidifier to use 100% of the water supplied
• PREMIUM MATERIALS The heavy-duty paper panel is reinforced with two layers of aluminum and coated with an anti-microbial agent to prevent the growth of biologicals
• The panel absorbs water and maintains the proper level of hydration for the evaporation process
• LONG LASTING Genuine AprilAire Water Panels last up to 2X longer than competitive replacement options
• TWICE PER HEATING SEASON REPLACEMENT The AprilAire 45 Water Panel must be changed twice per heating season for the humidifier to run efficiently
• HUMIDITY FOR HEALTH Achieve balanced humidity in the home, which has been shown to reduce the incidence of respiratory infections and symptoms related to allergies and asthma by minimizing the formation of bacteria, viruses, fungi, and dust mites
• INSTALL WITH CONFIDENCE Genuine AprilAire Water Panels are designed and made in the USA by AprilAire, the leader in Indoor Air Quality solutions for the home since 1954