The fan Master Jr support box allows you to safely attach a lighting fixture or ceiling fan to a building's structural support, so the ceiling fan is supported by the joist, not the box. Perfect for new construction, the fan Master Jr. Can be used in applications where duct work or wiring is present. The fan Master Jr's design provides additional wiring space on only one side of the box, so you can mount it to either side of a ceiling joist without having to split the wiring. The fan Master Jr is UL listed for fixture support of 150 lb or less and fan support of 70 lb or less and has a 2 hr fire rating.

Westinghouse FAN MASTER® Support Box, For Use With: 150 lb or Less Fan Support, 1/2 in D, 4-1/4 in Size, 4 in H x 4 in W x 4 in D, Import

• Fits all ceiling fans
• 13.4 cu-in wiring capacity
• 2-1/2 in Romex® or conduit knockout
• 2 hr fire rating
• Design allows secure installation to one side of a ceiling joist
• Includes Saf-T-Cap to protect inner workings during drywall installation or painting
• Use in new construction for ceiling fans of any style
• Apply where duct work or wiring is present
• Supports fans up to 70 lb, lighting fixtures up to 150 lb
• Attaches directly to building structure

• Instruction/Installation Manual https://assets.unilogcorp.com/2/ITEM/DOC/Westinghouse_0252511_Instruction_Sheet.pdf
• Specification Sheet https://assets.unilogcorp.com/2/ITEM/DOC/IDW_DOCUMENT_5654763eaf9228bb76446d64e8dc59e5f5aba1f5c026c343eabd2ec0496a6411.pdf