{"product_id":"von-duprin-4954287-steel-mullion-299-strike-prep-689-finish","title":"Von Duprin 4954287 Steel Mullion 299 Strike Prep 689 Finish","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe 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.\u003c\/p\u003e\u003cp\u003eThis 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.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSteel construction for durability in high-traffic commercial openings\u003c\/li\u003e\n\u003cli\u003e87 inches in length to fit standard commercial door frame configurations\u003c\/li\u003e\n\u003cli\u003eIncludes 299 strike prep for direct strike integration without additional machining\u003c\/li\u003e\n\u003cli\u003e689 aluminum finish for a consistent commercial aesthetic\u003c\/li\u003e\n\u003cli\u003eSold as a single unit (EA), ready for field installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned 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.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis 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.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: 689 Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 87 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 7.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 30.2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrike Prep\u003c\/strong\u003e: 299\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSales Unit\u003c\/strong\u003e: EA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VON DUPRIN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 4954287\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VON DUPRIN","offers":[{"title":"Default Title","offer_id":51538381635890,"sku":"4954287","price":790.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1e6ce2f00effefe1aa78ef42858d8703.jpg?v=1785823892","url":"https:\/\/voomisupply.com\/products\/von-duprin-4954287-steel-mullion-299-strike-prep-689-finish","provider":"Voomi Supply","version":"1.0","type":"link"}