PLF6CH-940 Hot Tub Filter compatible with 6CH-940, FC-0359, PWW50, and Waterways 817-0050. Please check your model for compatibility. The filter features thickened advanced trilobal fabric that helps capture contaminants, durable end caps resistant to breakage, and an enhanced center core for longer service life. Rinse the filter cloth with a nozzle until water runs clear during regular cleanings. Clean the filter every 1-2 months. Not universally compatible; verify your model before purchase. New and high-quality replacement filter for PWW50 hot tub and spa systems. Compatible models: 6CH-940, PWW50, FC-0359, Waterways 817-0050. Color: Blue & White. Material: Polypropylene (PP). Package includes: 1 x Hot tub filter replacement. Product only; other items not included. Note: Lighting and display differences may cause slight color variations. Measurement may vary by +/- 1-3 cm.