Compatible with the following components: Pleatco PWW50L, Unicel 4CH-949, Filbur FC-0172, SD-01143, 817-4050, PDC570-AFS, Rising Dragon 50, Baleen AK-90091, Magnum O250, Darlly 42522. This product is not sponsored, endorsed, or affiliated with Pleatco, Unicel, Filbur, Waterway, Rising Dragon, Teleweir, Baleen, Magnum, or Darlly. Made from high-quality materials, this filter features increased pleat count for enhanced filtration capacity. Includes 2-inch female SAE threaded ports and offers 50 square feet of filtration area. The material weighs approximately 5 ounces per square yard, providing more fibers per unit area for superior dirt-trapping performance. The trilobal fabric structure improves cleaning efficiency by allowing impurities to be easily released during maintenance, helping the filter perform like new after cleaning. It is recommended to clean the cartridge every 2 weeks to maintain optimal spa performance. Innovative "dirt-locking" technology enables the filter media to capture and retain contaminants more effectively than standard fabrics. Efficiently traps hair, leaves, dust, debris, sand, and other particles, helping keep your spa and hot tub water clean and clear. The unique trilobal filtration design enhances the capture of fine to medium-sized particles while remaining easy to rinse and clean. Regular cleaning every 2 weeks is recommended for best results. Color: Blue Material: Plastic Size: 125 x 378 mm Package Contents: 1 x Spa Filter Cartridge