Specification Brand : Tier1 BulletPoint1 : Compatible Models: Replacement for Watkins 31489, Filbur FC-3915, Unicel C-6330, C-6430, C-6430RA, Pleatco PWK30, PWK30-M, PWK30-4, SD-00328, 71825, 73178, 73250, P/N0969601, PDC510-AFS, SD-00704, CCP389 filtration cartridges BulletPoint2 : Keep the Water Clean: The pleated fabric filter maximizes contact between filter media, allowing for greater capacity and reduction. The durable & washable 30 sq ft fabric has tight porosity and a dense weave which sifts out unwanted hair, leaves, dust, sediment, sand, etc. with a high strength, high flow design. BulletPoint3 : Fit and Dimensions: The cartridge is designed for systems that use a 5 7/8 inch (Outside diameter) x 10 1/2 inch (Length) spa or pool filter. BulletPoint4 : Easy to Install & Maintain: Fits and performs just as well as the original equipment manufacturer product. It is recommended that you change your pool or spa filter when the pressure gauge on the filter tank reaches 8 psi above the pressure recorded when first installed. BulletPoint5 : Quality Standards: Tier1 filters pass rigid design, manufacturing, and filament testing delivering a product that is built for performance and priced for value Color : White CustomerPackageType : Frustration-Free Packaging ExternallyAssignedProductIdentifier1 : 810004471474 ExternallyAssignedProductIdentifier2 : 0810004471474 ExternallyAssignedProductIdentifier3 : 00678285170451 ExternallyAssignedProductIdentifier4 : 0719456883678 ExternallyAssignedProductIdentifier5 : 00719456883678 Hazmat : auto-grounding ItemDisplayDimensions_Depth : 10.5 inches ItemDisplayDimensions_Diameter : 5.88 inches ItemDisplayDimensions_Height : 10.5 inches ItemDisplayDimensions_Length : 5.88 inches ItemDisplayDimensions_Width : 5.88 inches ItemDisplayWeight : 6.8 pounds ItemName : Tier1 Pool & Spa Filter Cartridge 4-pk Wand Brush Filter Cleaner | Replacement for Watkins 31489, FC-3915, C-6330, C-6430, PWK30 and More | 30 sq ft Pleated Fabric Filter Media ItemPackageDimensions_Height : 10.5 inches ItemPackageDimensions_Length : 5.88 inches ItemPackageDimensions_Width : 5.88 inches ItemPackageQuantity : 5 ItemShape : Rectangular ItemTypeKeyword : swimming-pool-cartridge-filter-inserts Manufacturer : Tier1 Material : Pleated Fabric ModelName : PAS-1581-WAND-BRUSH-4-PACK ModelNumber : PAS-1581-WAND-BRUSH-4-PACK NumberOfBoxes : 1 NumberOfItems : 4 PackageLevel : case PartNumber : PAS-1581-WAND-BRUSH-2-PACK PowerSourceType : Unicel C-7494 131 Sq. Ft. Swimming Pool and Spa Replacement Filter Cartridge for CX1280RE, C5520, PA137, FC1297, and C5500 ProductDescription : TIER1-PAS-1581 4-Pack and TIER1-PAS-WAND-BRUSH Size : 4-Pack + Cleaning Wand Brush SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredDgHzRegulation1 : not_applicable SupplierDeclaredDgHzRegulation2 : not_applicable SupplierDeclaredDgHzRegulation3 : not_applicable SupplierDeclaredDgHzRegulation4 : not_applicable UnitCount : 1 UnspscCode : 47131600