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 (20x30x1)

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 of dust, pollen and allergens, which can help reduce allergy sufferers 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 – Smith Filter electrostatic air conditioner filters are crafted right here in the United States, so you can trust their durability and long-lasting quality.