Specification Brand : FAST SHIPPED FILTERS BulletPoint1 : Fast-Shipped-Filters 7 Pack Replacement Filter Pads Compatible with Dynamic Electronic Air Cleaner 18x24 polarized pads refill BulletPoint2 : Actual Filter Size 18.5"x21.5" BulletPoint3 : Filtration Technology: Activated FULL CARBON CENTER & Removes Orders, off gassing, Smoke, Dust Candle Soot and more / Ozone free / Made in USA BulletPoint4 : Replace Every 1 to 4 Months: Depending Local air quality for optimal performance. BulletPoint5 : For a quote on Large Orders Contact us through Amazon BulletPoint6 : The products advertised on this page are manufactured by Fast-Shipped-Filters. BulletPoint7 : Fast Shipped Filters is a family-owned business in Swanton, Ohio that has been in the Heating Cooling & Air Purification industry since 1984 Color : Blue ControllerType : Button Control ControlMethod : touch ExternallyAssignedProductIdentifier1 : 0880189642716 ExternallyAssignedProductIdentifier2 : 880189642716 FilterType : Activated Carbon FloorArea : 1 IncludedComponents : 7 Filters ItemName : Fast-Shipped-Filters 7 Pack 18x24 Replacement Filter Pads Compatible with Dynamic Electronic Air Cleaner 18x24 polarized pads refill ItemTypeKeyword : electrostatic-filter-air-purifiers ItemTypeName : 18x24 air filters Manufacturer : Fast-Shipped-Filters ModelName : 18x24 D_B7 ModelNumber : 18x24 D_B7 NumberOfItems : 7 PartNumber : VB2000 PowerSourceType : ac ProductDescription : Fast-Shipped-Filters 7 Pack Replacement Filter Pads Compatible with Dynamic Electronic Air Cleaner 18x24 polarized pads refill Actual Filter Size 16.5x21.5 ProductSiteLaunchDate : 2024-03-30T14:28:26.119Z Size : Actual Filter Size 16.5"x21.5" SupplierDeclaredDgHzRegulation : unknown