Replace the old,worn-out factory part of your Pool Vac XL or Navigator Pro pool cleaner with the Hayward AXV604WHP Wing Kit. It offers a wider cleaning path and higher suction power to the old cleaners. This kit comes with a left and a right wing and can be easily installed. The wing wear has a horizontal line and three vertical lines above it. When the horizontal line vanishes,it is time to replace the wing kit. This wing kit is compatible with Hayward Pool Vac Ultra,Pool Vac Plus and Navigator pool cleaners. It can also be used for Leslies models Pool Vac cleaners.