Type: Swimming Pool Filter, Pool Filter, Swimming Filter Core, Filter Cartridge, Filter Element, Filter Replacement. Designed to provide clean and hygienic water for your swimming pool, this filter cartridge features easy installation and cleaning. Features: Install inside the filter pump to ensure higher efficiency. Efficient filter fabric reduces floating impurities, debris, and dirt in the collection pool. Keeps swimming pools and water pumps clean. Easy to clean, simply take the filter out of the pump and spray off the debris with a garden hose. It is recommended to replace the filter elements every two weeks in summer to keep the water clean. Suitable for Bestway 530gph and 800gph pumps 58094, 58093, 58148NL, 58149, 58117NL, 58118, Spa 54100, 54101, 54102, 58383, 58386, Lazy Z Spa filter pump. Specifications: Material: PET, Melt-blown fabric. Color: White. Size: Outer diameter: 10.6cm, Inner diameter: 5.2cm, Height: 13.6cm. Package Contents: 4 x Filter Cartridge. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the actual product. The measurement allowed error is +/- 1-3cm.