Maytronics Dolphin Blue Rear Brush Assembly

The Maytronics 99955381-ASSY is the blue rear brush assembly for the Dolphin S200, S300, S300i and S400 robotic pool cleaners. It is the genuine Maytronics part, supplied as a complete assembly ready to fit.

Why the rear brush matters

The brushes are what hold the robot to the floor and walls and do the actual scrubbing. Once the rear brush wears down the cleaner loses traction, climbs poorly and leaves a film behind even though the filter is clean. Swapping it is routine maintenance on an S series Dolphin.

Before you order

Confirm your model is an S200, S300, S300i or S400. This is the rear brush only; the front active brush is a separate assembly if both are worn.