Von Duprin 4954287 Steel Mullion 299 Strike Prep 689 Finish

Product Description

The VON DUPRIN 4954287 is a steel mullion designed for use with Von Duprin exit device systems in commercial door applications. Measuring 87 inches in length, 7.25 inches in width, and 4 inches in height, this mullion provides the structural center post needed to mount paired exit devices on double-door openings. It includes a 299 strike prep, allowing for direct integration with compatible strikes, and ships in a 689 aluminum finish. Weighing 30.2 pounds, it is built for heavy-use commercial environments where durability and code compliance are non-negotiable. Installation is typically handled by licensed locksmiths, door hardware specialists, or commercial contractors.

This mullion is suited for commercial and institutional buildings including schools, hospitals, office buildings, and retail facilities where double-door openings require a center post to support paired exit devices. The 299 strike prep simplifies field installation by eliminating the need for custom prep work at the job site. The 689 aluminum finish provides a clean, professional appearance consistent with standard commercial door hardware specifications.

Key Features

• Steel construction for durability in high-traffic commercial openings
• 87 inches in length to fit standard commercial door frame configurations
• Includes 299 strike prep for direct strike integration without additional machining
• 689 aluminum finish for a consistent commercial aesthetic
• Sold as a single unit (EA), ready for field installation

Compatibility

Designed as an OEM-style mullion for use with Von Duprin exit device systems on commercial double-door openings requiring a center post with 299 strike prep.

Installation Notes

This mullion should be installed by a licensed door hardware professional or commercial contractor familiar with exit device systems and applicable building codes. Power down any integrated electrified hardware and ensure the door frame is properly aligned before mounting. Refer to Von Duprin installation documentation and local building code requirements, including applicable sections of the International Building Code, to confirm proper application and hardware compatibility.