20x21x1 Boair Air Conditioner Filter

BoAir 20x21x1 Electrostatic AC Furnace Filter (Exact filter size is 19-5/8 X 20-5/8 X 7/8) BoAir's 5-stage Air Conditioner filter is great for reducing allergens and dust in your indoor air. Recommended for allergy and asthma sufferers. We are an official BoAir authorized factory dealer. Due to our high volume of filter sales & low overhead we can offer these filters at THE LOWEST PRICES AVAILABLE ANYWHERE!! BoAir filters are constructed with 5 layers of media (not just three like others) and surrounded by a rugged aluminum filter frame. A unique combination of Polypro with Polyurethane foam media attract and hold the airborne pollutants inside the layers of the electrostatic filter until they are released by washing. Highest quality in the industry - we're so confident in our electrostatic filters that we back them with a lifetime warranty (10 years for commercial applications). No polyester - BoAir electrostatic filters contain NO polyester, meaning they are easier than ever to clean, and they're less restrictive than competing products. High performance - BoAir filters have undergone independent A.S.H.R.A.E. testing and boast dust arrestance in excess of 90% with initial resistance of a mere 0.10 w.g. at 1200 CFM. Easy for you to maintain - BoAir electrostatic filters are permanent, washable and re-usable. Simply rinse with clean water, let dry and re-install. The Only filter with VIBAX MI-50 - BoAir electrostatic filters are the only ones embedded with VIBAX MI-50, an anti-microbial agent which helps prevent the growth of mold and mildew.

• Replaces 20x21x1 disposable furnace filters

• Electrostatic, Washable, Permanent Filter

• Non-Rusting Aluminum Frame

• Lifetime Warranty

• 5-Stage Electrostatic Filter Media