Specification Brand : Glasfloss BulletPoint1 : MERV 10 with No Increased Resistance Over MERV 8. Instant Upgrade From MERV 7 or MERV 8 Pleated Filters BulletPoint2 : Great For Allergy Sufferers BulletPoint3 : Expanded Metal Backing on Synthetic Media with Heavy Duty Frame That Resists Moisture. BulletPoint4 : Exact Size 21 1/2 x 23 5/16 x 7/8, 21.5 x 23.3125 x .875, Nominal Size 21 1/2 x 23 5/16 x 1” BulletPoint5 : Fits listed models of Carrier, Bryant & Payne Air Handlers, See Description Below BulletPoint6 : Activated carbon technology helps reduce indoor odors, smoke, and VOCs while capturing dust and allergens for fresher indoor air. Color : White CompatibleDevices : Air Conditioner CompatibleDevices1 : Air Purifier CompatibleDevices2 : Furnace CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier : 06910376074946 ExternallyAssignedProductIdentifier1 : 740781957390 ExternallyAssignedProductIdentifier2 : 0740781957390 ExternallyAssignedProductIdentifier3 : 00740781957390 ExternallyAssignedProductIdentifier4 : 0736902494325 ExternallyAssignedProductIdentifier5 : 0736902495322 ExternallyAssignedProductIdentifier6 : 0736902494349 IncludedComponents : Flanders/Precisionaire 10055.011224 Fiberglass Furnace Filter (Pack of 12) ItemDisplayDimensions_Height : 1 inches ItemDisplayDimensions_Width : 16 inches ItemDisplayWeight : 7 pounds ItemName : Glasfloss 21-1/2 x 23-5/16 x 1 Air Filters (Case of 4), MERV 10, Pleated, Made in USA ItemPackageDimensions_Height : 24 inches ItemPackageDimensions_Length : 24 inches ItemPackageDimensions_Width : 4 inches ItemPackageQuantity : 4 ItemTypeKeyword : replacement-household-furnace-filters Manufacturer : Glasfloss Industries Material : Synthetic MinimumEfficiencyReportingValue : 10 ModelName : ZL Series ModelNumber : ZL Series NumberOfItems : 1 PackageLevel : unit PartNumber : ZLP21H23E1-4PK Pattern : 6 Pack ProductDescription : The Glasfloss ZL Series MERV 10 21 1/2 x 23 5/16 x 1 pleated air filters are designed to out perform other filters. In conjunction with the heavy duty beverage board frame, these filters offer an expanded metal backing to support the synthetic pleated filter media for optimum performance in the most challenging applications. Glasfloss MERV 10 air filters provide enhanced filtration over MERV 8 air filters with no additional pressure drop. This means these filters can capture more pollen, dust and other pollutants than a MERV 8 filter without your system having to work harder to move the air through the filter. As with any 1 inch air filter, these filters should be changed every 30 to 90 days. The synthetic filter media is stronger and more efficient than cotton type media and the heavy duty beverage board frame will resist absorbing moisture, making these filter an excellent choice for for your Carrier, Bryant or Payne air handler listed below. Fit these models and others FV4ANF006, FK4DNB006, FC4DNB060, FC4CNB054, FH4CNB004, FX4DNB049, PF4MNA061, FXM4X6000A, FSU4P4800A, FB4ANF070, FX4CNF060, FE5ANB004, FC4CNB070, FV4CNB006, FX4DNB061, PF4MNB049, FSM4X6000A, FSM2X6000A, FCM4X6000A, FC4BNF054, FX4CNB060, FE4ANB006, FY4ANB060, FX4DNF049, FX4BNF060, PF4MNB061, FSU4X6000A, FSU2X6000A, FVM4X6000, FC4BNF070, FC4DNF060, FB4BNB070, FA4CNB060, FX4DNF061, PF4MNA060, FXM4X4800A, FSM4P4800A, FEM2X6000A ProductGrade : new ProductSiteLaunchDate : 2017-06-27T07:00:00.000Z Size : 21.5" x 23.3" x 1" Style : MERV 8 Pure Carbon SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 4 UnspscCode : 40161505 WarrantyDescription : Warranty WebsiteShippingWeight : 5 pounds