4 in. Dia 22-1/2 cu. in. New Work Ceiling Box with Bar - 9963979

Highlights

• Knockouts on fiberglass boxes are complete, reducing drafts and easily removed with wire for no tools installation
• Device holes are pre-tapped and tapered for secure device installation and drastically reduce device pull out
• Patented non-metallic Speed K Klamps dependably secure wire in the box, should a knockout be inadvertently opened and not used, the Speed K Klamp is considered sufficient closure of the opening per UL
• Mounted with the 16 in. - 24 in. adjustable mounting bar
• For 16 in. to 24 in. on center joist applications
• Fixture rated to 50 lbs.