Check the listing for details. 3 Replacement Compatible 20x20 MicroPower Guard Air Cleaner Filters. Color: Yellow, Condition: New. Listed at 69.98 USD. 3 Replacement Compatible 20x20 MicroPower Guard Air Cleaner Filters You are purchasing a pack of (3) replacement polarized replacement compatible media for a one inch (1") MicroPower Guard Air Cleaner All Filters size in stock Activated Full Carbon Center Removes Smoke, Allergens, Bacteria, Dust, Cooking Smoke, Candle Soot, and moreThe filters are 1.5" x 2.5" Smaller then the air cleaner We have custom sizes Fast Shipped Filters is a family-owned business in Ohio that has been in the Heating Cooling and Air Purification industry since 1984 How does it work?When particles such as dust, pet dander and household chemicals pass through the filter, they become polarized. These polarized particles join together to form bigger clusters that are more easily captured and collect on the fiberglass pad with an activated carbon center screen. The activated carbon center media pad is a non-woven polyester base fabric. The carbon media is UL certified for flame retardancy, class 2. The fiberglass media becomes polarized by the charge from the power supply and acts like a powerful magnet to attract sub-micron particles.Don't see your size contact usthrough eBay messages Custom Filters Sizes AvailableManufactured by Fast-Shipped-Filters Caution: Do not place order using the measurement of disposable fiberglass pad. Measure the outside frame or refer to filter label inside plastic channel.Thank you for lookingReplacement media air filter pads can also be used in:Dynamic 1 inch panels P1000 Dynamic 2 inch panels P2000 Dynamic RS2 1400 Dynamic RS3 1400 Dynamic RS2 2400 Dynamic RS3 2400 Dynamic OH1010 Dynamic CT-100 Dynamic CT-500 PureAiRx Air Cleaner P6100 Premium Air Quality Specialists Air Cleaner Aeriale Air Cleaner FreshAire UV PLP Perfect Air Plus Air Cleaner SolaceAir Air Cleaner StratosAire Air Cleaner SpacePak PurePak AC-RBC-2 SpacePak PurePak AC-RBC-3 SpacePak PurePak AC-RBC-5 PremierOne Pure Flo P6100 Air Cleaner Pristine Air Air Cleaner Biologic3 Air Cleaner Clean Air Defense System AirRanger Electro-Filter Air Cleaner Garrison GAR-P6100 Green Homes America Natures Home MicroPower Guard® Natures Home MicroPower Guard® Diamond One Hour Xenon MicroPower Guard® One Hour Xenon MicroPower Guard® Diamond MicroGuardian AirScrubber® III AlpinePure ET for the Water Furnace brand geothermal hydronic units EarthPure air cleaner for the ClimateMaster geothermal units