A PVC brush helps a compatible robotic cleaner grip and scrub pool surfaces during operation, and this Maytronics Dolphin Diagnostic and 3001 red version uses the 6101303 reference. Surface-contact parts like this are important because cleaner travel and cleaning quality both depend on dependable brush behavior.This brush has practical value because it is intended for specific Maytronics cleaner families rather than serving as a one-size-fits-all substitute. A properly selected replacement helps restore original fit, preserve cleaner balance, and contribute to more consistent movement and surface-cleaning performance.This type of part is especially useful when the original brush has worn down, become less effective, or lost the traction needed for dependable robotic travel. That helps keep the repair targeted and restores a key cleaner-contact component.Installed in the proper application, this PVC brush helps support cleaner scrubbing action and more dependable overall performance. Red PVC brush for compatible Maytronics Dolphin Diagnostic and 3001 cleaner applications Helps support traction, scrubbing, and surface-contact performance Useful when replacing a worn or damaged original brush Supports cleaner movement consistency Improves repair accuracy and cleaning confidence