Compatible with the following components: for PWW50L, 4CH-949, FC-0172, SD-01143, 817-4050, PDC570-AFS, Rising Dragon 50, Baleen -90091, Magnum O250, Darlly 42522. The part / product will not sponsored, endorsed or affiliated with the to which it goes, including for , , , Waterway, Rising Dragon, Teleweir, Baleen, Magnum and Darlly. The filter is made of high quality material. Due to the high-performance polyester, the lasts longer than cheaper alternatives.More pleats mean improved filter capacity. The filter material of the Trilobal Fabric Structure makes it easier to remove contaminants when cleaning the filter. The filter is like a new one after cleaning. It is recommended that the cartridges be cleaned every 2 weeks to keep your spa performing. Our spa filter can deliver lower pressure and higher flow rates, causes less pump wear, and also uses less energy than other filter cartridges, so it ensures a longer life of the product. With 2inch Female SAE Threaded and 50 Square Foot Spa Filter .(About 5 ounces per square yard means more fibers per unit of area for better dirt trapping power). Colour: blue Material: plastic Size: 125 x 378mm Package Contents: 2 x Spa Filter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.