Uflex Pitot Tube Kit for Speedometer with 20ft Tube 4-47403

Uflex pitot tube complete with transom mount mounting hardware and 20ft of tubing that routes to the boat's speedometer.
Uses changes in air pressure in the hose and speedos internal mechanism, when the boat speeds up water is pushed through the pilot compressing air into the hose, this increase as the speed does making the speedo display increasing speeds.