(8 PK) 20" x 20" x 4" Clean Air Expandable Filter for Model 1/2/3 and 4300 MERV 11 - Aprilaire 310

• UPC   686720003103 886566284432
• Compatible Models: 1310, 2310, 3310, 4300 MERV Rating: 11 Recommended Replacement Schedule: 12 Months Nominal Measurements: 20H x 20W x 4D (inches) Actual Measurements: 19.58H x 21.38W x 4D (inches)
• BUY WITH CONFIDENCE This genuine replacement air filter was designed and manufactured in the USA by AprilAire – the leader in indoor air quality solutions VACUUM AND DUST LESS OFTEN by preventing airborne particles from settling on your furniture and flooring BETTER PERFORMANCE thanks to the patented AprilAire Self-Seal Technology which minimizes the amount of air bypassing the filter EASY AS 1-2-3 TO INSTALL in the unique AprilAire Interlock Rail System. Unpack. Slide in. Close the door. Done. WORRY-FREE We stand behind the performance of our air filters with our 10-year Clean-Coil Commitment PROUD PARTNER OF AMERICAN LUNG ASSOCIATION in support of its mission to save lives by improving lung health and preventing lung disease Compatible Models: 1310, 2310, 3310, 4300 MERV Rating: 11 Recommended Replacement Schedule: 12 Months Materials: Synthetic Fiber Contaminants Removed: Airborne Particles, Dust, Pollen, Mold Spores, Bacteria, Pet Dander Nominal Measurements: 20H x 20W x 4D (inches) Actual Measurements: 19.58H x 21.38W x 4D (inches)