1. Type D replacement cartridge for pool filters 2. High Quality Filter Cartridge: Keep your pool water crystal clear and help your swimming pool pump perform efficiently with the Type D filter cartridge. 3. Powerful Filtration Performance: Innovative "Dirt-Locking" technology allows the fabric to trap more contaminants than standard filter fabric. This filter effectively removes hair, leaves, dust, sediment, sand, and other debris. Enjoy clean and clear water in your pool and spa. 4. Easy to Clean: Uniform high-performance trilobal fabric helps capture and release debris, making it easy to rinse and clean the filter. It is recommended to clean the cartridge regularly and replace it as needed to maintain optimal spa performance. 5. Designed to deliver advanced filtration technologies that provide clean and clear water, supporting the health and enjoyment of pool and spa owners. Intex Type D Length: 3.75" Outside Diameter: 4.13" Top: 2" open Bottom: 2" open Compatible with: POOLPURE Filter for Pool and Spa Cleaning Systems Compatible with Summer Waves, Summer Escapes, and Intex D Type Filters Fits canisters: SFS-350, RP-350, RP-400, RP-600, RX-600, SFS-600 Note: All manufacturers' names and part numbers are the property of their respective owners and are used for compatibility purposes only.