Pool robot connection kit, swivel ball bearing with nut, compatible with Polaris 280, 380 and 180

Compatibility: The hose's ball bearing is rotatable and replaceable, compatible with Polaris 180, 280, 380, 480, and 3900 pool cleaners, part numbers: D20, D-20. Improved Quality: The pool cleaner hose is made of high-quality ABS. Two nuts and a swivel fitting are required to connect two water supply hoses. Solution: The hose's rotatable and replaceable ball bearing solves problems of hose hardening and leaking after prolonged use, while also providing a swivel function for more efficient operation. Installation Tips: The arrow always indicates the direction of water flow. Water flows from the wall fitting to the Polaris pool cleaner through the hose. Soak the end of the hose in a container filled with hot water (such as a saucepan or large thermos) to soften it and make it easier to slide on. Packing list: 1 * pool cleaning hose, 2 * hose nuts, (Note: not suitable for Polaris 360 pool cleaner).