General description The Pool Robot Connection Assembly is designed for perfect compatibility with Polaris pool cleaners including models 180, 280, 380, and 480. This assembly includes the D20 swivel hose, D15 hose nut, and hose swivel connector, ensuring a reliable connection for efficient pool cleaning. Technical specifications Compatible with Polaris pool cleaner models: 180, 280, 380, 480, 3900 Replacement Part Number: D20, D-20 Not suitable for Polaris 360 pool cleaner Installation To connect two supply pipes, use two pipe nuts and one pipe swivel joint. Ensure the arrow on the hose points in the direction of water flow. Water flows from the wall fittings through the hoses to the Polaris pool cleaner. Soften the end of the hose by immersing it in hot water for easier installation. Usage Regularly check for wear on the rotating parts. Inspect connections for leaks. Ensure the hose rotates freely to prevent stiffness. Other information The pool cleaner hose is made of high-quality