Improved compatibility with pool cleaners: This set includes 4 D20 hose swivels and 4 D15 hose nuts, specifically designed for the 280, 380, and 180 pool cleaners, making them a perfect fit for these models. Quick and easy installation: The hose swivels and nuts easily connect to the pool cleaner's inlet hoses for hassle-free installation. Durable: Made from durable materials, the hose swivels and nuts offer reliable and long-lasting performance. Improved functionality for effective pool cleaning: The hose swivel allows for smooth movement of the inlet hoses, while the hose nuts securely connect multiple hoses together, ensuring efficient pool cleaning. Complete set for practical use: This set contains four sets of D20 and D15 and includes all the swivels and nuts you need for your 280, 380, and 180 cm pool. Cleaning supplies.