Washable Electrostatic HVAC Furnace Air Filter, 6 Stage Permanent Air Filter

New Item. Trophy Air Washable Electrostatic HVAC Furnace Air Filter, Lasts a Lifetime, 6 Stage Permanent Air Filter, Healthier Home or Office, Made in The USA - Increases Airflow (18x20x1) Outside dimensions are 21-1/5 in. x 19-1/5 in. Enhanced HVAC Effectiveness – Crafted to help improve your home’s ventilation efficiency, proper air flow can help reduce air flow resistance for less HVAC stress. Cleaner, Healthier Air – These air conditioner filters help purify the air, which can help reduce itchy eyes and sneezing. Premium Craftsmanship – Each HVAC air filter is crafted with four layers of high-grade aluminum and two layers of electrostatic media for superior reliability. Quick & Easy Installation – Each electrostatic air purifier slides into your HVAC system effortlessly in seconds, making it simple to change out your old filters. American Made – Trophy Filter electrostatic air conditioner filters are crafted right here in the United States, so you can trust their durability and long-lasting quality.