2 Pack 210 Air Filter Replacement, Help Reduce Odor, Humidity Resistance & Dust Capture, Compatible with AprilAire Whole House Air Purifiers,20x25X4 Furnace Filter

Additional Details from the Manufacturer

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• 【Model Compatibility】 210 Bamboo furnace air filter designed for AprilAire Whole House Air Purifiers models 1210, 1620, 2210, 2216, 3210, and 4200. Important Note: Not fit for 2120, 2200 furnace and 1213 Upgrade Kit .
• 【Bamboo Filter Material for Superior Filtration】 Natural bamboo is a renewable material. Bamboo filter filtration performance and air-purifying effect surpass synthetic fiber filters, providing fresher and healthier breathing. Suit for homes, offices, schools, and hospitals.
• 【USA Newest Patent Design】4 foldable metal bars greatly improve the support stability of the filter replacement. The 4 anti-friction pads (at the top and bottom) prevent friction between the filter element and the furnace during installation.
• 【Nominal Air Filter Size】 20 x 25 x 4 inch. Nominal size is an industry standard filter size system, not the actual size. It can help you identify the correct replacement filter easily. Actual size：20.47x25.6x4 inch.
• 【1 Minute to Install】 No tools required. Just three steps: pull up to unfold, lock metal bars, push into the furnace. Say goodbye to the upper and lower guide system, assemble cardboard, metal bars and screws, ect.