Specification Brand : TOREAD BulletPoint1 : 【NSF/ANSI 50 CERTIFIED】 TOREAD Pool and Spa filter has been rigorously tested and certified by IAPMO against NSF/ANSI 50, ensuring safe material usage. With a precision of 50 microns, our filter effectively removes hair, leaves, dust, sediment, sand, and other fine particles. BulletPoint2 : 【SPECIFICATIONS】 Length: 6 5/8"; Outer Dimension: 5"; Top: 2 1/8"open; Bottom: 2 1/8" open; Filtration Area: 50 sq. ft; Filter Material: Trilobal Filtration Fabric. BulletPoint3 : 【REPLACEMENT MODELS】TOREAD TRF-4405 filter compatible PRB25SF PAIR, Unicel C-4405, Filbur FC-2387,R172464, APCC7062, CMP 25392-000-100, 17-2464. NOTE: This is a compatible spare part and the manufacturers' names and part numbers have been used for reference purposes only. TOREAD is an independent brand. BulletPoint4 : 【REINFORCEMENT STRUCTURE】With 25% thicker filtration fabric, heavy chlorine resistant and break-resistant end caps and reinforced center support, the filter delivers high powered propulsion flow, and crystal clear water, providing you with a relaxed and healthy enjoyment. BulletPoint5 : 【MORE EFFICIENT FILTRATION AREA】Uniformity and high-performance trilobal fabric has 21-40% higher capacity compared with common point-bond fabric. The trilobal shape of fabric fibers also helps catch particles, increases efficiency without the pressure drop penalty, and helps reduce filter cleaning frequency. BulletPoint6 : 【EASY TO CLEAN】The Trilobal Fabric Structure filter material makes it easy to release impurities when cleaning the filter, the filter is like a new one after cleaning. It is recommended that you clean cartridges every 2 weeks to maximize your spa's performance. Color : White ExternallyAssignedProductIdentifier1 : 0810151300306 ExternallyAssignedProductIdentifier2 : 810151300306 GpsrSafetyAttestation : 1 ItemName : TOREAD PRB25SF Spa Filter Replaces Unicel C-4405, Filbur FC-2387, PRB25SF-PAIR, R172464, APCC7062, CMP 25392-000-100, 17-2464, 817-5010 Hot Tub Filter, 2 Pack ItemPackageDimensions_Height : 26.6 centimeters ItemPackageDimensions_Length : 13.9 centimeters ItemPackageDimensions_Width : 18.2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : swimming-pool-cartridge-filters Manufacturer : Toread Material : 100% Reemay® Spunbond Polyester ModelName : TRF-4405 ModelNumber : TRF-4405 NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : TRF-4405 PowerSourceType : manual ProductDescription : PRB25SF Spa Filter Replaces Unicel C-4405, Filbur FC-2387, PRB25SF-PAIR, R172464, APCC7062, CMP 25392-000-100, 17-2464, 817-5010 SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 40161505