4-1/2" Hole Size
To replace the Swivel Assembly and Venturi Handle:
Remove 3 screws securing clamping ring and gasket from jet body. Pull swivel ring B (see detail) away from swivel to expose retaining screw A. Remove screw A from swivel. Turn Venturi C counterclockwise until it is unscrewed and free from the swivel. Install new swivel assembly, securing it with clamping ring, gasket and 3 screws. Screws are properly tightened when the swivel assembly can still be manually moved from side to side, but tight enough to allow the Venturi handle to be turned to adjust water without turning the swivel. To install the handle, align the two portions of the swivel assembly with the notches on the handle and snap it on. NOTE: When installed, the handle is permanently in place; attempting to remove it will damage the snap on feature of the handle.
