PondMAX Non-Kink Pond Hose is the easiest, strongest and preferred hose to use when installing PondMax Pressurized Filters. Unlike standard flex pipe, this is metal reinforced for extra sturdiness! It also allows for maximum flexibility and is able to coil and turn in conditions that require very tight radii, maximizing the performance of any pond pump and filter. Available in sizes ranging from 1/2″ in diameter to 2″ in diameter.