Arlington Joist Mount Screw-On L-Shaped Vapor Box FB443F 25/BOX

The L-shaped fan and fixture vapor box by Arlington Industries is meticulously designed to support ventilation and lighting installations in drywall applications, handling specific requirements for both 70lb fans and 200lb fixtures. With a generous 18.3 cubic inch space, it not only accommodates your installation needs but also features a robust 2-hour fire rating, ensuring safety and compliance with building codes. The unique flange design serves as a protective barrier against air infiltration, enhancing energy efficiency while maintaining optimal performance in your environment. Crafted from durable plastic, this vapor box offers reliability and practicality in both residential and commercial settings.