Specification Brand : Pool Health Group BulletPoint1 : 【Perfect Fit】14” Length / 6 3/8" O.D / 2” I.D / Compatible with pleatco PWK35B, Limelight Series, Watkins 1642301-1, 78161, 78286, Filbur FC-3921, 1642301-1 NOTE: All manufactures names are used for reference only for compatibility. BulletPoint2 : 【Proven Superior Filtration】: Meltbown technology allows for superior filtration over the standard pleated material used in most pool and spas with over 10 times the filtration depth of a pleated filter, meltblown filters also keep the debris locked into the material, keeping your pool cleaner without the use of heavy chemicals BulletPoint3 : 【NSF CERTIFIED】Filters Tested to NSF 42, 61 and NSF 372 for drinking water standards, because why shouldn’t your pool water be as clean as your drinking water? BulletPoint4 : 100% American Made and Sourced BulletPoint5 : No More Cleaning: No more washing off the outside of the filter, metlblown filters last much longer than the standard pleated filter. It is also recyclable. Color : Blue ExternallyAssignedProductIdentifier : 00850020649761 ItemName : Pool Health Group New Longer Lasting PWK35B Meltblown Spa Filter, Replaces for Hot Springs Limelight Series, Watkins 1642301-1, 78161, 78286, Filbur FC-3921, 2 Pack ItemPackageDimensions_Height : 6.5 inches ItemPackageDimensions_Length : 14 inches ItemPackageDimensions_Width : 13 inches ItemTypeKeyword : swimming-pool-cartridge-filter-inserts Manufacturer : Pool Health Group ModelName : Meltblown Spa Filter ModelNumber : PH-PWK35B-2 PartNumber : PH-PWK35B-2 PowerSourceType : ac ProductDescription : Melt blown spa filter replacement for PWK35B, Hot Springs LimeLight Series Spas. Melt blown filters are much more efficient than a pleated filter this allows the filter to catch more particles, keeping your pool cleaner without the use of adding as much chemicals as you would typically need to use, meaning you can spend less time worrying about your spa and more time enjoying it, the less chemcials your body has to soak up the better. Melt blown filters also have much more surface area and depth than a pleated pool filter meaning it can capture 10 times more debris on average and filter down to much lower particle sizes than a pleated filter can do. SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 40161505