Features: 1. Polyester Fiber Cloth: The filter medium is made of pp polyester fiber cloth, which has good mechanical properties and solar energy properties, high temperature resistance, and is not affected by strong acid. 2. Keep Pool Water Clean: Pool filter cartridge can keep the pool water clear and work with the pool pump to provide excellent performance. 3. Washable Pleated Fabric: Durable and washable pleated fabric that retains strength even when loaded with sediment. Size is 115x86mm / 4.5x3.4in. 4. High Flow Core Design: Our high flow core is designed to support the filter while providing flow rate and while reducing wear on the pump. 5. Easy to Clean: Just scrub with filter cleaning tool, then wash under strong water pressure to remove loose particles from filter cloth. 6. Replace Timely: For maximum efficiency, it is recommended to clean the filter cartridges weekly and replace with a new filter every two weeks. Specification: Item Type: Pool Filter Cartridge Material: Polyester Mesh Color: As Pictures Shown Weight: Approx. 185g / 6.5oz Product Size: Approx. 115x86mm / 4.5x3.4in Application: Suitable for Hot Tubs, Spas, Children's Pools, etc. Compatible Model: For MSPA 2089 Package List: 2 x Filter Cartridge Features High-Quality Polyester Fiber Cloth: The filter medium is constructed with pp polyester fiber cloth, offering exceptional mechanical and solar energy properties, high temperature resistance, and durability even in strong acid environments. Ensures Crystal Clear Pool Water: Effectively keeps the pool water clear and works seamlessly with the pool pump, delivering outstanding performance for a pristine swimming experience. Durable Washable Pleated Fabric: Features a durable and washable pleated fabric that maintains its strength even when loaded with sediment, with a convenient size of 115x86mm / 4.5x3.4in. Innovative High Flow Core Design: The high flow core is engineered to support the filter, delivering an optimal flow rate while reducing wear on the pump for long-lasting performance. Easy Maintenance: Simple to clean, just use a filter cleaning tool and wash under strong water pressure to remove loose particles from the filter cloth, ensuring hassle-free upkeep.