This Roto Casement Operator features a hole spacing of 3-1/2" on thee outside mouting holes and 1-7/8" on the two inside mouting holes. The housing is contructed of die case metal that is electro-statically painted. The housing is 5-1/2" wide. The optional handle fits the 5/16" Hex Shaft.
This GU Split Arm Operator replaces the original version which was plastic. The new version is made of die cast metal and is much stronger that the original. Comes with handle.