Keep your Robotic Pool Cleaner working efficiently with our Ultra Fine Filter Replacement. Improve your water quality with our high-quality Filter Replacement for Robotic Pool Cleaner Parts. Don't let a faulty filter your pool cleaning - 8 x 9991425-R4 pool filter replacement - Please rinse the filter every 3-5 weeks for optimal performance. Timely cleaning and correct use the fiter can last 4 years. Replace Part Number: 9991425-R4, replace 9991414-ASSY Compatible with Dolphin Premier, DX6, Deluxe 4, Deluxe 5, DLX4, DLX5, DX5S, Triton (old), Quest, Edge, (old), Advantage Plus (old), (old), Wave 75, Prowler 820, Prowler 830 Robotic Pool Cleaners Protect the Pool Cleaner: The filter can effectively prevent dust and other particles from entering the cylinder, reduce the wear and tear of the cylinder, sufficient and into the cylinder, prolong the service life of the engine and provide stronger power Filter Efficiently: This spring kit can help pool cleaner to remove debris in the pool, such as leaves, hair, dust, diatoms, and more, to help keep your pool clean Colour:Black+White Material:plastic Package Contents: 8 x Pool Cleaner Filter 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.