L-shaped fan and fixture vapor box. 70lb fan, 200lb fixture rated for 1/2" or 5/8" drywall. 18.3 cu. 2 Hour Fire Rating. Flange forms a protective barrier against air infiltration.

L-shaped fan and fixture vapor box - Vapor Barrier for Electrical Installations The L-shaped fan and fixture vapor box by Arlington Industries is designed for new construction applications, providing a secure mounting solution for fans and fixtures on 1/2" or 5/8" drywall. This vapor box serves as a protective barrier against air infiltration through ceilings or building envelopes, helping electrical distributors, lighting solutions providers, and switchgear suppliers meet residential codes and ENERGY STAR requirements. Specifications Material: Plastic Color: Black UL Ratings: 70 lb fan, 200 lb fixture CSA Ratings: 50 lb fan or fixture Fire Rating: 2 Hour Volume: 18.3 cubic inches Drywall Compatibility: 1/2" or 5/8" Product Weight: 0.38 lbs Mounting Style: Screw-on joist mount with shipped-in-place center screw Manufacturer Part Number: FB443F Features Non-metallic, non-conductive construction for safety and code compliance Built-in flange with gasket material attached to form an air infiltration barrier Includes captive installation screws for fan/fixture bracket mounting Designed for fast, secure installation on wood or steel joists Flange gasket and NM cable connectors pre-installed for convenience Patented design with other patents pending Downloads & Links Specification Sheet Catalog Page FB443F Line Drawing