1Convenient to Clean: Simply rinse the sediment with water for reuse, easily lasts a long time before needing to be replaced. 2Good Performance: Adopt advanced three leaf fabric to effectively collect large amounts of debris or other contaminants, making the water cleaner and running smoother. 3Replace Once A Week: For maximum efficiency, clean cartridges once a week and change them monthly or earlier. Maintain the performance of the filter to provide you with clean water. 4Widely Use: The swimming pool filter is suitable for hot tubs, spas, children's pools, etc. Meeting your relaxing swimming requirements in different places. 5Strong Compatiblity: Compatible with for Pleatco PRB50IN, for Unicel C4950, for SD00201, for SD00455, for Aladdin 15002, for 25391, for PLE0510088, for PLE0519180, etc.Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.