Product Description

4" dia. round fixture support box for use with nonmetallic sheathed cable

Brand: fiberglassBOX™ - Vapor Seal
Catalog #: 9350-BHKV

Width: 4 in.
Depth: 2-7/16 in.
Volume: 22.5 cu. in.
Type of Installation: New Work
Round Ceiling Box

Carton Quantity: 18
Carton Weight: 26 lb.

UPC: 085339881247
UNSPSC: 39121316
U.S. Patent No. 6,908,003 B2
Country of Origin: United States of America


Polyurethane flange for single drywall offset, machine tapped fixture holes, rigid hard box construction, no distortion with high temperatures, shatter resistant with low temperatures, Speed "K" Clamps factory installed


New work residential construction 2 HR fire resistive walls and ceilings (50 lbs. fixture support) - air-sealed electrical outlet box for envelop walls and ceilings in Energy Star homes


ANSI / UL 514C: File No. E30594


Ul Code Black




NEMA OS 4 - Energy Efficient Air-Sealed Boxes for Electrical Applications

Fire Classification

Fire Test of Building Construction Materials
ANSI / UL 263: File No. CEYY.R9379 (Category / File No.)
Note: Products must also be certified to: ANSI / UL 514C


Fire Resistance Classification in Wall Assemblies 2-Hours or less
Shall be separated by a horizontal distance of not less than 3 inches


Fire Resistance Classification in Floor-Ceiling Assemblies 2-Hours or Less
Distance between boxes in adjacent cavities may be reduced to 5 ½ inches

Note: For more details please refer to the UL fire resistive directory and Allied Moulded’s CEYY.9379 (Outlet boxes and fittings classified for fire resistance)




Fiberglass reinforced polyester BMC


Adjustable bar hanger - 16" to 24" on center joist application

Additional Materials

Galvanized steel brackets and plated carbon steel fasteners

Polyvinyl chloride clamps

Polyurethane flange

Support Rating

50 lbs fixture support