Check the listing for details. XLS-435 2PACK Filter Cartridges for Waterway Plastics, C-4310, PWW-10, FC-3077. Condition: New. Listed at 36.99 USD. Important Specifications:Diameter: 4 1/4" (4.25")Length: 4"Top Hole: 1 3/4" (1.75")Bottom Hole: 1 3/4" (1.75")Top Style: OpenBottom Style: OpenMedia Area: 10 sqftWeight: 3 ozCompatible Filter Model/Part Numbers:Aladdin 11003Baleen AK-3006Custom Molded Products 25249Darlly 40101Excel Filters XLS-435Filbur FC-3077, FC-3077MIcon Spas 146949Magnum CS7Pleatco PWW10, PWW10-MPleatco PWW10PAIRPure N Clean PC-3077Rec Warehouse 378900SD-00260, 01136Thermo Spa FL1003Unicel C-4310, C-4310RAWaterway Skim Filter 10Waterway Plastics 817-0010Compatible Hot Tub Spa & Pool Brands:Accent SpasBlue Falls Manufacturing Ltd.Charisma SpasCustom Molded ProductsCyanna Valley SpasDiamante SpasEndless PoolsHollibaugh SpasIcon Spas / Keyes SpasLeisure Bay ManufacturingPDC SpasPhoenician SpasRec WarehouseSonoma SpasSpas WestStarlight SpasStrong IndustriesSuperior SpasThermo SpasUs Tooling & SpasViking SpasWaterway PlasticsWeslo SpasExcel tirelessly works to advance the science of water filtration. As a result, we’ve designed pool & spa filter cartridges that are more efficient, longer lasting and ultimately provide cleaner, clearer water.Engineered to CleanWe use only premium-grade, ultra-efficient media along with Black Diamond end caps and a sturdy structural core. Our use of premium materials coupled with efficient flow dynamics provides our customers with a longer useful filter life, high effectiveness, and low energy use.Care & MaintenanceAfter you upgrade to Excel Filters, we recommend cleaning your new filter cartridges after an initial pass. Because Excel Filters are so effective, they'll remove debris left behind by your previous cartridges.Excel Filters are easy to clean. We recommend filter rotation while cleaning your filter cartridges, swap them with clean, dry spares. This keeps the water filtration cycle going and no wait to use your pool or spa with the added benefit of your filter cartridges lasting longer.WarrantyExcel Filters are made in the USA and include a 6-month warranty and 12-month service life.USA Made QualityOur pool & spa replacement filter cartridges are designed and built here in the USA, engineered to clean and offer greater efficiency and a longer useful life.Greatest ValueHaving a sparkling clean pool shouldn’t cost a fortune. By selling direct we’ve filtered out the traditional supply chain and offer the best filter cartridges for much less.