Dolphin pool cleaner spring fine filtration basket

The Fine filter basket (S1) Ref. 9991459-ASSY It is the original filtration cartridge for a wide range of pool cleaners Dolphin and the Pentair Prowler 910. It is designed to retain fine particles such as dust, pollen, light sand or organic remains, improving the clarity of the water after regular cleaning tasks or after episodes of wind and rain. Its “basket” type design makes it easy to remove from the top of the robot and allows quick rinsing with a hose.

Filtration level S1 (fine) It is ideal for daily use or to combine with ultra-thin baskets when a more polished finish is required. Made of high-strength technical plastics, it maintains the geometry of the cartridge during multiple work cycles and withstands suction efforts without deformation. To maintain the performance of the pool cleaner, it is recommended to empty the basket after each cycle, rinse the filter walls from the inside to the outside and check that there are no hairs or fibers trapped in the corners.

If you notice that the robot loses power, leaves debris floating, or the dirty filter warning comes on more frequently, replacing the basket with a new one usually restores the flow rate and fine capture capacity. Check below the compatible models and always choose original spare parts to ensure a perfect fit and adequate sealing.