This part is located inside the Balboa HydroFlow spa and hot tub diverter valve with 2″ insert, regardless of handle style. It can also be found in many Dimension One spas diverter valves (Selector range) since 1998.
It doesn’t fit the Waterway diverter valves.
The o’ring is also available as a spare part.
Length: 138 mm
Outside diameter: 58 mm