The 48 in. Unger Pro Water Flow Pole features aluminum construction that is lightweight offering easy handling for commercial and residential cleaning. Water flows thru with on and The 48 in. Unger Pro Water Flow Pole features professional-grade aluminum construction that is lightweight offering easy handling for commercial and residential cleaning. Water flows thru with on and off valve. Use with our Connect and Clean water flow brushes for scrubbing, washing and cleaning. This pole is pared with the Unger Water flow Bi-Level Wash Scrub Brush has soft bristles to clean surfaces. With multiple levels of bristles, you gain several angles of cleaning all at once. Easily thread brush onto a pole. Non-Scratch multi-angled bristles to gently clean surface.