Specification AirFilterConstruction : Pleated Brand : Aprilaire BulletPoint1 : BUY WITH CONFIDENCE This genuine AprilAire 310 replacement air filter was designed and manufactured in the USA by AprilAire – the leader in indoor air quality solutions – to optimize the performance of your AprilAire Air Purifier Model: 1310, 2310, 3310, or 4300 BulletPoint2 : VACUUM AND DUST LESS OFTEN by preventing airborne particles from settling on your furniture and flooring. This AprilAire 310 replacement air filter removes airborne particles as they pass through the MERV 11 filter including dust, pollen, mold, spores, bacteria, and pet dander. BulletPoint3 : BETTER PERFORMANCE thanks to the patented AprilAire Self-Seal Technology which minimizes the amount of air bypassing the filter BulletPoint4 : EASY AS 1-2-3 TO INSTALL in the unique AprilAire Interlock Rail System. Unpack. Slide in. Close the door. Done. No assembly or cardboard or metal reinforcements needed. BulletPoint5 : NOMINAL AIR FILTER SIZE of 20 x 20 x 4 inches (nominal size is an industry standard filter size system to help you easily identify the correct replacement filter and is not the actual size) BulletPoint6 : PROUD PARTNER OF THE AMERICAN LUNG ASSOCIATION in support of its mission to save lives by improving lung health and preventing lung disease Color : White CommonApplications : Allergen Reduction CompatibleDevices : AprilAire Models: 1310, 2310, 3310, 4300, Competitive Models using 4898 Upgrade Kit CustomerPackageType : Manufacturer's Standard Packaging ExternallyAssignedProductIdentifier1 : 686720003103 ExternallyAssignedProductIdentifier2 : 0686720003103 IncludedComponents : (1) 310 Filter Media IsOemAuthorized : 1 ItemDisplayDimensions_Height : 50 centimeters ItemDisplayDimensions_Width : 100 centimeters ItemDisplayWeight : 2.43 pounds ItemName : AprilAire 310 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 11, Clean Air & Dust, 20x20x4 Air Filter (Pack of 1) ItemPackageDimensions_Height : 54.6 centimeters ItemPackageDimensions_Length : 10.8 centimeters ItemPackageDimensions_Width : 11.4 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : replacement-household-furnace-filters Manufacturer : Research Products Corporation MasterPackLayersPerPalletQuantity : 5 MasterPacksPerLayerQuantity : 4 Material : Metal MetalType : Synthetic Fiber MinimumEfficiencyReportingValue : 11 ModelName : Media Filters ModelNumber : 310 A1 NumberOfItems : 1 OemEquivalentPartNumber : 310 A1 PackageLevel : unit PartNumber : 310 A1 ProductGrade : new ProductSiteLaunchDate : 2011-02-19T15:19:48.985Z Size : 21.4" x 4" x 18.9" StreetDate : 2018-05-15T00:00:01Z Style : Filter SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 40161505 WarrantyDescription : No Warranty WebsiteShippingWeight : 0.82 kilograms