Function: 1. Convenient to clean: just rinse the sediment with water for reuse, it easily lasts a long time before it needs to be replaced. 2. Good performance: Adopt advanced three-leaf fabric to effectively collect large amounts of impurities or other impurities, making the water cleaner and smoother. 3. Replace Weekly: For maximum performance, clean the cartridges once a week and replace them monthly or more often. Maintain filter performance to ensure clean water. 4. Wide application: the pool filter is suitable for hot tubs, spas, children's pools, etc. Meets the requirements for relaxing swimming in various places. 5. Strong Compatibility: Compatible with Pleatco PRB50-IN, Unicel C-4950, SD-00201, SD-00455, Aladdin 15002, 25391, PLE-051-0088, PLE-051-9180, etc. Specification: Item Type: Spa Filter Material: PP Weight: approx. 602g or 21.23oz Product Size: Approx. 335 x 125mm or 13.19 x 4.92in Application: for hot tub, spa, kids pool etc. Package List: 1 x pool filter