Product Description: 1. Type D replacement cartridge for pool filters 2. High Quality Filter Cartridge: Keep your pool water crystal clear and give your swimming pool pump its best performance with the filter Cartridge Type D. 3. Powerful Filtration Performance: Innovated "Dirt-Locking" technology make the fabric traps much more contaminants than regular fabric. This filter efficiently removes hair, leaves, dust, sediment, sand, etc. Enjoy clean leisure time in your pool and spa. 4. Easy To Clean:Uniformity and high-performance trilobal fabric make it easier to capture and release stains, so it's easy for you to wash the filter after use. It is recommended that you replace cartridges every 2 weeks to maximize your spa's performance. 5. focuses on bringing great technologies and products to the market that truly provide the cleanest water filtration possible for the health, safety and happiness of every pool and spa owner. Intex type D Length: 3.75" Outside Diameter: 4.13" Top: 2" open Bottom: 2" open Compatible with: for POOLPURE Filter for Pool and Spa Cleaning Systems Comparable 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 remain the property of their respective holder(s) and are used for compatibility information only.