9991433-R4 Spring Filter Panels, Part Number: 9991432-R4.Replacement filters work with the following Dolphin Robotic Pool Cleaners: for CC Plus( Not for CC), M400, M500, , Odyssey, Oasis Z5i, Triton Plus (), XL, C3, C4.It's dimension is 10-1/2inch x 6-3/8inch. Lightweight design makes the process of replacing filters a breeze, so you and your family can maintain healthy and pure air in room. A filter will help remove irritants and neutralize odors.Filter canintercept dust,leaves,diatoms,hair, effectively filter to reject secondary pollution The heart of the pool cleaner is the filters. Keep clean and replace when they are worn or to dirty to clean. filter will the cleaning performance of your device:Remove 99.9% of particles including odors, smoke, pet dander, dust, and more down to 0.1 Micrometre in size. Captures finer particles than HEPA H11 (0.3 Micrometre). ABS plastic pleated fiber filter,solid and durable,washable and reusable,last for 2-3 years long service life. rinse the filter 4-6 weeks for optimal performance. [Advantages]: 1.The Energy- pool pump does NOT need to run. 2. The robotic pool cleaner scrubs the sides as as the pool floor.Fine mesh filter,they the fine dirt from the water also. easy to clean. 3. The -screen filter cleans up silt, sand, grass trimmings, pet hair, and even pine needles colour: black + white : Plastic Package Contents: 8 x pool filters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.