【Compatibilitay】 9-100-9001 Wall Fitting Connector Assembly Compatible for Polaris Zodiac 180, 280, 380, 480 PRO, 3900 Sport, Vac-Sweep 380, Vac-Sweep 280, 280 TankTrax. 【Replace Part Number】 9-100-9001, 91009001, 25563-150-000, EW22, POL2011441. 【Blue And Red Parts】 Flow restriction discs used to restrict water flow to the sweeper when the water pressure from the booster pump is too high, preventing the booster pump from overstressing the associated sweeper and helping to optimize the performance and efficiency of the cleaner. 【Components】 9-100-9001 UWF Connector Assembly Includes: ① Universal Wall Fitting ② Quick Disconnect ③ Pressure Relief Valve ④ Restrictor Disk. 【Easy Installation】 Simply screw the 1-1/2 male threads into the wall-specific pressure connection. Then, screw the quick disconnect into the wall fitting and lock it in place. ASIN B0DRNDHNVY Color 2 Set 9-100-9001 Brand Name GZJoSum Unit Count 2 Count Manufacturer GZJoSum Material Type Plastic Included Components UWF Connector Assembly Item Dimensions L x W 0.1 L x 0.1 W