Arlington new non-metallic device/sconce box saves time! it comes ready to use and its easy to install with a 3-1/4 in standard hole saw! You'll get a super secure installation too. as you push the box into the opening, its saw teeth cut a path through the drywall for the device screws. They hold the device securely in place. after installing the device, complete the job with a maxi-plate - required to fully cover the hole in the drywall.

Arlington Fan/Fixture Mounting Box, Knockout Cable Entry, 4-1/4 in Diameter, Round Shape, Press-On Mounting, 10.3 cu-in Capacity, Plastic, Black, 4-1/4 in L x 4-1/4 in W x 2-1/4 in H Dimensions

• No loose parts to misplace totally self-contained
• Works well on single or double wood joists
• Fan fixture installation screws are parked ready for easy fan fixture bracket installation
• 2 hr fire rating
• Convenient indicator marks for 1/2 in, 5/8 in-and 3/4 in ceiling thicknesses
• FB417SLP also works with wood and manufactured I-beams

• Warranty Information https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Arlington_314S_Warranty.pdf
• Line Drawing https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Arlington_FB415_Line_Drawing.pdf
• Specification Sheet https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Arlington_FB415_Specification_Sheet.pdf