Roadtime Hot Tub Filter 4CH-949 PWW50L Compatible with U-nicel 4CH-949, Filbur FC-0172, SD-01143, 817-4050, PDC570-AFS, Spa Filter Cartridge (1pc,Blue)

• Compatible with Pleatco PWW50L, Unicel 4CH-949, Filbur FC-0172, SD-01143, 817-4050, PDC570-AFS, Rising Dragon 50, Baleen AK-90091, Magnum O250, Darlly 42522, The part/product is not sponsored or endorsed by, or affiliated with the brands it fit, including Pleatco, Unicel, Filbur, Waterway, etc
• The filter is made of 100% high-quality polyester material. The polyester material allows the filter element to last longer than cheaper alternatives.
• The filter material easily releases impurities when cleaning the filter, and it looks new after cleaning. It is recommended that you clean the filter element every 2 weeks to maximize spa performance.
• More cartridge pleats mean increased filtration capacity, and the three-layer laminate structure captures more contaminants than regular filter cartridges. This filter effectively removes hair, leaves, dust, deposits, sand, etc.
• These filters provide safe, clean, pure water that inspires the highest sense of well-being. Enjoy your unique summertime.

How to find a replacement cartridge for your pool or spa? If you already know your filter cartridge's part number or the replacement number, you can use the search the part number on our product page to quickly confirm whether the filter is compatible. If you do not know the replacement part number for your cartridge, then choosing the right cartridge can be accomplished by measuring your existing one. Use the following steps as a guide: 1. Measure cartridge length from end cap to end cap (+/- 1/16) in inches. Exclude any handles or extensions. 2. Identify the correct top and bottom types. If the top and/or bottom is open, measure the inside diameter of the opening (+/- 1/16 inch). If the end cap is closed make note of its identifying features (i.e. Handle, Cone, etc.). 3. Make note of whether or not there is a centre core (PVC pipe in the centre). 4. Make note of the manufacturer and model number of the filter into which the replacement cartridge will be installed. Specification Filter Media: Pleated Fabric Length: 13 3/16? Outside Diameter: 5? Top: Handle Bottom: 2" Female SAE Threaded Filtration Area: 50 sq. ft.