Maytronics Dolphin Active Classic CB grey diagonal brush assembly - 99955230-ASSY

Maytronics Dolphin Active Classic CB grey diagonal brush assembly

This is the genuine Maytronics replacement diagonal combine-brush (CB) assembly for the Dolphin Active Classic CB robotic pool cleaner. The assembly integrates the full brush roller unit — bristles, core and drive mount — in a single ready-to-swap module that restores the robot’s scrubbing and debris-collection performance across pool floors, walls and the waterline.

What the diagonal brush pattern does

The diagonal (DIAG) bristle geometry is engineered to channel loosened debris inward toward the robot’s suction path rather than scattering it sideways. Angled rows create a wiping action that improves contact with textured or uneven pool surfaces, dislodging stubborn algae and fine sediment more effectively than a straight-cut brush profile.

Compatible Dolphin models

This assembly is confirmed compatible with the Dolphin Active Classic, Dolphin Premier, Dolphin Nautilus CC Plus, Dolphin Hydro 40, Dolphin Evolution 40, Dolphin SF40, Dolphin Swell M, Dolphin KAPTUR 150, Dolphin X60, Dolphin Zenit 15, Dolphin X FORCE 10, Dolphin M200, Dolphin DX3, Dolphin Active X3, Dolphin Zenit 10, Dolphin M250, Dolphin KAPTUR 120, Dolphin Zenit 12, Dolphin XT3 and Dolphin XT2. Always verify your robot’s part number before ordering.

Signs the brush assembly needs replacing

Replace this assembly when the robot leaves visible debris trails, when bristles appear flattened, split or missing segments, or when the robot struggles to climb walls it previously handled without difficulty. A worn brush also reduces suction efficiency because debris is no longer being directed cleanly into the intake.

Why genuine Maytronics parts matter

An aftermarket brush assembly may differ in bristle durometer, core diameter or drive-pin spacing, causing premature gear wear or brush slip. Genuine Maytronics components are manufactured to the exact dimensional tolerances of the original part, ensuring correct mesh with the drive shaft, consistent rotation speed and compatibility with Maytronics’ warranty terms.