Perfect Compatibility: These black brushes work on many pool cleaners They widely fit Polaris, Vac-Sweep automatic pool cleaners, including Polaris 180, 280, 360, 380, 480 and 3900 Sport. They are a good replacement for the pool cleaner exhaust pipe. Filtration: Each pool brush is made from high quality filtration foam to help dislodge debris from floors, walls, seats and steps of the pool. Replacing worn out brushes keeps vacuums clean at full capacity Easy Installation: Snap-on design makes it easy to install the Pro Rear Broom and replace the foam brush without tools, just feel a clicking sound when you push it onto the port cap. When installing, make sure the original cap is in good condition with no wear Performance: Allows 50 percent more flow with the Pro Sweep Pro Scrub Brush, maximizing the propulsion of water to blow debris out of corners while giving the sweep hose the signature sweeping action that maximizes cleaning performance and water circulation