INYO # 4638-08 JACUZZI # 22557409R ALUMINUM HANDLE LENGTH: 11-3/4" DIAMETER: 9/16" (SHAFT DIAMETER) DIAMETER: 1-1/2" (THIS IS THE DIAMETER OF THE MAIN PART WITH THE 6 SIDED HOLE THE 6 SIDED HOLE IS MADE SO THAT THE HANDLE WILL ONLY FIT ON THE VALVE IN ONE WAY. THE INSIDE SIDE ARE NOT EXACTLY THE SAME SIZE