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One of the most purchased spare parts and therefore suffer more wear are the brushes, as they are in contact with the surface and provide the grip to the robot to perform the cleaning. It is important that they are in good condition and that the ideal brush is purchased depending on the type of pool.
The Z12 pinion gear is one of the components of the front active brush 9995544-ASSY. Therefore an important element for a correct functioning of the active brush.
In the following drawing we have the complete active brush (no. 1), the adapter (no. 2), the bushing (no. 3) and the gear (no. 4).
Remember to replace worn or damaged parts with original Dolphin spare parts and make sure you get the maximum performance from your pool robot.