1. Type D replacement cartridge for pool filters 2. High Quality Filter Cartridge: Keep your pool water crystal clear and optimize your swimming pool pump performance with the Type D filter cartridge. 3. Powerful Filtration Performance: Innovative "Dirt-Locking" technology enables the fabric to trap significantly more contaminants than standard fabric. This filter efficiently 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 effective capture and release of 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. Focused on delivering advanced technologies and products that provide superior water filtration for the health, safety, and enjoyment of pool and spa owners. Intex Type D dimensions: 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.