This casement window operator is a right-handed aluminum square body design. It features a 9-inch steel arm with a circular disc at the end (some older variants used a small wheel instead of a disc). The disc navigates within the Prime-Line part H 3529 casement track situated at the base of the casement window. It operates via a worm gear driven by a 3/8-inch crank spindle. The corresponding crank handle that attaches to the crank spindle, along with installation screws, is included. The available mounting holes are spaced at 3-7/8 and 4-3/4 inches on center.
Right-handed square body crank handle (viewed from inside, looking outside)
Mounting holes are spaced at 3-7/8 inches and 4-3/4 inches on center
The arm extends 9 inches from the center of the guide button to the center of the crank operator when closed
Robust diecast zinc construction enhanced with an aluminum finish
Durable steel worm drive gear
Customer feedback
Customers express that the casement operator functions effectively and is straightforward to install; one even noted it fits seamlessly like plug and play. Additionally, they are pleased that the windows operate as if new and deem it a great value for the cost. Nevertheless, the quality garners mixed reviews, with some buyers describing it as satisfactory while others find it lacking.
