Scotty 165 1.5′ Ball System Top Plate SPRING_ENGINE_TUNE_UP_AND_FILTERS Manufacturer MPN Configuration Specifications 0528C0699A Manufacturer MPN Configuration Specifications 0528C0699A chrome plated bronze replacement cap with O ring 1" For Figure 0528 1" pipe size fill 0528C0999A chrome plated bronze replacement cap with O ring 2" For Figure 0528 2" pipe size fill 0528C1099A chrome plated bronze replacement cap with O ring 2 1 2" For Figure 0528 2 1 2" pipe size fill 0528C1199A chrome plated bronze replacement cap with O ring 3" For Figure 0528 3" pipe size fill Technical Information high strength plastic 5″ ball joints allow for 360 degrees of rotation and 180 degrees of tilt at both ends UV resistant engineering grade nylon construction