JOWEI 4-Inch Old Work Ceiling Box 18 CU In Round PVC Electrical Box UL Listed 2-Hour Fire Rated 12 Pack with Adjustable Mounting Tabs

The JOWEI 4-inch old work ceiling box is designed for remodeling electrical installations in existing ceilings. This 12-pack includes round PVC electrical boxes with an 18 CU in capacity. Each box is made of impact-resistant PVC for a sturdy construction suited to residential and commercial use. The boxes are UL Listed and have a 2-hour fire rating as stated in the supplied product information. Installation is supported by self-locking adjustable mounting tabs. Tightening the screws secures the box to an existing ceiling and helps create a flush fit, while the tabs help prevent movement over time. No extra fittings are needed according to the supplied product information. The boxes hold up to 12 lbs and are compatible with a wide variety of ceiling fixtures, including lights, smoke alarms and other electrical equipment. The listed product dimensions are 2.66 x 4.33 x 4.33 inches, and the listed product weight is 3.13 Pounds. The supplied package information lists package dimensions of 8.4 x 7 x 3.1 inches and a package weight of 1.43 pounds. These measurements and weights are presented separately as product and package information. The round design, adjustable mounting tabs and screw-secured installation support use when adding a ceiling box during remodeling. Review the stated 12 lb holding capacity and fixture compatibility when selecting the box for a specific installation. The package quantity is 12 boxes, providing multiple units for a project or for future installation needs.