Prime Line Products H 3710 Casement Window Operator 9in Lh

Product Description

The PRIME LINE PRODUCTS H 3710 is a 9-inch left-hand diecast casement window operator designed for square-drive applications. This hardware component mounts to a casement window frame and drives the window sash open or closed via a crank mechanism. The operator is constructed from diecast metal for reliable cycle life and dimensional consistency. It ships carded and is sold in units of one per order. Glaziers, window installers, and general contractors typically handle this type of replacement hardware during window service or renovation work.

This operator is suited for residential and light commercial casement window applications where a left-hand, square-type drive operator is required. It is a direct-style replacement for worn or broken casement operators of the same hand and drive configuration. The 9-inch arm length is a common sizing for standard single-casement window units and is appropriate for mid-range sash widths that require moderate mechanical advantage to operate smoothly.

Key Features

• Left-hand orientation for correct sash drive direction
• Square-type drive interface for compatibility with matching crank hardware
• Diecast metal construction for durability and dimensional accuracy
• 9-inch arm length suited to standard casement sash widths
• Carded packaging for retail or shop-counter dispensing

Compatibility

Designed as an OEM-style replacement for residential and light commercial casement windows requiring a left-hand, square-type, 9-inch diecast casement operator.

Installation Notes

Installation is typically performed by a glazier, window technician, or experienced general contractor. Before removing the existing operator, close the sash fully and secure it to prevent uncontrolled movement. Fasten all mounting screws to the manufacturer-specified pattern without overtightening into the frame material. Verify hand orientation and drive type match the existing crank hardware before finalizing installation.