Product Description Please note: Due to differences in lighting and monitor settings, the actual color may vary slightly, but this does not affect the product's functionality. Thank you for your understanding. Compatibility: The 9991467-R4 ultrafine filter is compatible with the following Dolphin pool cleaners: Active 20, Active 30, Active 30i, Active 40, Active 60, Advantage Ultra (new model), Explorer E30, Explorer E50, Explorer E70, M600, Mercury, Premium, DX4, DX5i, Prowler 920, Prowler 930, Prowler 930W, Quantum, S200, S300, S300i, S400, T35, T45, T55i, Triton PS, Triton PS Plus, Warrior SE, Warrior SI. Durable Design: The 9991467-R4 ultrafine filter is made of high-quality plastic, making it sturdy and durable, and resistant to deformation or breakage. Easy to Clean: The filter is easily removable and can be thoroughly rinsed with a garden hose for quick and efficient cleaning. Reusable design ensures its long-term value. High-Efficiency Filtration: The pleated filter design effectively captures fine debris and dirt from the pool bottom, enhancing the cleaning performance of your pool cleaner. Easy Installation: Replacement is simple and quick. Each filter plate is numbered. For best results, remove the filter plates in order from 1 to 4, then reinstall them in reverse order from 4 to 1. Color: As shown. Material: Plastic. Package Contents: 1 set x ultrafine filter. Note: Colors may vary slightly due to lighting conditions and screen display settings. Size may have an error of +/- 1-3 cm.