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 16 3/8 x 21 1/2 x 7/8, 16.375 x 21.5 x .875, Nominal Size 16 3/8 x 21 1/2 x 1 BulletPoint5 : Fits listed models of Carrier, Bryant & Payne Air Handlers. See Description Below Color : White CompatibleDevices : Air Conditioner CompatibleDevices1 : Furnace CompatibleDevices2 : Air Conditioner CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier1 : 740781957376 ExternallyAssignedProductIdentifier2 : 0740781957376 ExternallyAssignedProductIdentifier3 : 00192212001354 IsOemAuthorized : 1 ItemDisplayDimensions_Height : 50 centimeters ItemDisplayDimensions_Width : 100 centimeters ItemName : Glasfloss 16-3/8 x 21-1/2 x 1 Air Filters (Case of 4), MERV 10, Pleated, Made in USA ItemPackageDimensions_Height : 54.61 centimeters ItemPackageDimensions_Length : 9.144 centimeters ItemPackageDimensions_Width : 41.656 centimeters ItemPackageQuantity : 4 ItemTypeKeyword : replacement-household-furnace-filters Manufacturer : Glasfloss Industries Material : Synthetic MinimumEfficiencyReportingValue : 10 ModelName : ZL Series ModelNumber : ZL Series NumberOfItems : 1 OemEquivalentPartNumber : 19 7/8x21 1/2x1 MERV 8 4-Pack PackageLevel : unit PartNumber : ZLP16F21H1-4PK Pattern : Air Filter ProductDescription : The Glasfloss ZL Series MERV 10 16 3/8 x 21 1/2 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. Fits these models and others FV4ANF002, FB4ANF036, FK4DNF002, FC4DNF030, FB4BNF030, FY4ANF024, FB4CNF030, FV4CNF002, PF4MNA024, PF4MNB025, FEM4X3000A, FSM4P2400A, FSM2X3000A, FEM2X3000A, FA4ANF030, FC4BNF030, FX4CNF024, FE4ANF002, FB4BNF036, FY4ANF030, FB4CNF036, FX4DNF019, PF4MNA025, FXM4X1800A, FEM4P3000A, FSU4P1800A, FSU2X2400A, FEM2X3500A, FA4ANF036, FC4BNF036, FX4CNF030, FA4BNF030, FC4CNF030, FA4CNF024, FH4BNF002, FX4DNF025, PF4MNA030, FXM4X2400A, FEM4P3600A, FSU4P2400A, FSU2X3000A, FCM4X2400A, FB4ANF030, FK4DNF001, FC4DNF024, FA4BNF036, FC4CNF036, FA4CNF030, FH4CNF001, FX4BNF030, PF4MNB019, FEM4X2400A, FSM4P1800A, FSM2X2400A, FEM2X2400A, FVM4X2400 ProductGrade : new ProductSiteLaunchDate : 2018-10-22T01:49:03.323Z Size : 16.4" x 21.5" x 1" Style : Standard SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 40161505 WebsiteShippingWeight : 0.794 kilograms