Upgraded Material: The 9-100-9001 wall fitting connector is made of durable and wear-resistant ABS plastic, tested to ensure reliable performance for your pool cleaner. Ideal Replacement Part: This 9-100-9001 universal wall fitting connector is compatible with Polaris Zodiac 380, 280, 180, 480 PRO, 3900 Sport, Vac-Sweep 380, Vac-Sweep 280, and 280 TankTrax models. UWF Connector Assembly: The 9-100-9001 UWF connector regulates water flow to the Polaris pool cleaner. It functions as a control valve that manages the water entering the cleaning system. The included red and blue discs are flow restrictors designed to reduce water flow if the booster pump pressure is too high. Easy to Install: No tools required. Installation takes only a few minutes. The 9-100-9001 wall fitting connector threads directly into a 1-1/2 inch male pressure wall port. Simply attach and lock the quick disconnect into the wall fitting. Package Includes: One or two 9-100-9001 UWF connectors for swimming pool cleaner, one red restriction disc, and one blue restriction disc.