SPECIFICATIONS The D20 Pool Cleaner Hose Ball Bearing Swivel is NOT compatible with Polaris 360 pool cleaner. It takes 2 hose nuts and 1 hose swivel to connect 2 feed hoses together. There is an arrow mark on the swivel, make sure that the swivel has to be installed with the arrow in the direction of water flow. To help with the installation, you should get a cup of boiling water and put the hose in it for 1 minute to become flexible in order to put on the swivel more easily. Works with the following models: Zodiac Polaris: 180, 280, 380, 480 PRO, 3900 Sport, 280 TankTrax, Vac-Sweep 280, Vac-Sweep 380 Fixes the following symptoms: The swivel stops working. The original OEM joints begin to leak and no longer swivel freely. The stiff hose sections. The cleaner gets trapped. Count on our D20 Pool Cleaner Hose Ball Bearing Swivel for an unrivaled mix of durability, convenient functionality, and great value for money. Click ‘Add to Cart’ now! If you are unsure our replacement part will fit your appliance model, you can ask us in Customer questions & answers section or contact us by visiting the Blue Stars LLC storefront -- click the "Blue Stars LLC" on a product page to get to the storefront -- then click the "Ask a question" link under Further Information. Select your reason, and then tell us about the question.