Fangrui Product Details [Part Number] Compatible with following: For PWW50L, 4CH-949, FC-0172, SD-01143, 817-4050, PDC570-AFS, Rising Dragon 50, Baleen -90091, Magnum O250, Darlly 42522,.The part/product is not sponsored or endorsed by,or affiliated with the it fit,including , , , Waterway, Rising Dragon, Waterway Teleweir, Baleen, Magnum, Darlly. [High quality] The filter made of high quality material.-duty polyester makes the capable of lasting longer than cheaper alternatives. [Powerful Filtering Ability] More pleats mean improved filtering capacity.Triple laminated poly-constructed inner scrim is topped by weather top coating,Break keeping the pleats crisp, clearly defined and evenly separated. [Our Advantage] Spa filter can deliver lower pressure and higher flow rates, creates less wear and tear on the pump,moreover while using less energy than other filter cartridges ,so it ensures a longer life of the product. [Size] (378mmx125mm) with 2inch Female SAE Threaded and 50 Square Foot Spa Filter .(About 5 ounces per square ya