Please note: There may be a slight color difference between the actual product and the images shown, which does not affect the use of the item. Thank you for your understanding. [Compatibility] 9991467-R4 Ultra Fine Filter Compatible with Dolphin Pool Cleaners: Active 20, Active 30, Active 30i, Active 40, Active 60, Advantage Ultra (new), 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. [Durability] The 9991467-R4 ultrafine filter is sturdy and will not deform or break. [Easy to Clean] The pool cleaner's filter removes easily and can be rinsed directly with a garden hose to quickly clean dirt from the filter. The filter is reusable. [Efficient Filtration] Pleated filter design helps isolate dirt from the bottom of the pool, which is then picked up by the pool cleaner. [Simple Installation] Replacing the filter with the 9991467-R4 ultrafine filter is simple and straightforward. Each panel is numbered. It is recommended to remove the filters in order from 1 to 4 and install them in reverse order from 4 to 1 for the easiest replacement. Color: As shown in photo Material: Plastic Package Contents: 1 set x Ultra Fine Filter Note: Light reflection and different display settings may cause the color of the item in the picture to appear slightly different from the actual product. Measurement may vary by +/- 1-3 cm.