Product Details
The Prime-Line H 4300 casement operator is a 9-inch square type designed for left-handed installation, constructed from a diecast body with a hardened steel arm featuring a steel guide button with a diameter of 9/16 inches. This unit includes a case-hardened worm gear mechanism with corrosion-resistant plating, a square-shaped housing, and an operator crank handle finished in aluminum paint. It is specifically designed for face-mounted installation on older crank-out casement steel window frames with mounting hole centers of 3-7/8 inches and 4-3/4 inches. The operator ensures minimal gear lash, providing positive and smooth operation. Installation fasteners and a set screw for securing the crank handle onto the operator spindle are included. For opposite handing options, refer to model number H-4306.
