1. Type D replacement cartridge for pool filters 2. High Quality Filter Cartridge: Keep your pool water crystal clear and enhance your swimming pool pump's performance with the Type D filter cartridge. 3. Powerful Filtration Performance: Innovative "Dirt-Locking" technology enables the fabric to trap more contaminants than standard filter materials. This filter effectively removes hair, leaves, dust, sediment, sand, and other debris. Enjoy clean and refreshing pool and spa water. 4. Easy to Clean: Uniform high-performance trilobal fabric allows for efficient capture and release of debris, making cleaning simple. Rinse or gently scrub the cartridge as needed. It is recommended to clean the filter regularly and replace it every 2 weeks for optimal spa performance. 5. Committed to delivering advanced technologies and high-quality products that provide effective water filtration for the health, safety, and enjoyment of pool and spa owners. Intex Type D specifications: Length: 3.75", Outside Diameter: 4.13", Top: 2" open, Bottom: 2" open Compatible with: POOLPURE filter systems for pool and spa cleaning Also compatible with: Summer Waves, Summer Escapes, and Intex Type D filters Fits canister models: 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.