Saf-T-Grid For Suspended Ceilings, Westinghouse Lighting 0107000. This Westinghouse Saf-T-Box allows you to safely install a fan or lighting fixture during new construction or in locations with attic access. The Saf-T-Box features a heavy-duty, all-metal, 21.5-cubic-inch, dual-mount electrical box, and works with any model of ceiling fan. The included Saf-T-Cap will protect bolts and wires during drywall installation and painting. The Saf-T-Box is UL listed to support fans up to 70 pounds and light fixtures up to 150 pounds. Dual mounting capability, includes 10-24 threads for heavier fans and fixtures, as well as 8-32 threads for cover plates and lightweight light fixtures. Westinghouse is a trusted, global brand. Westinghouse knows lighting and offers products with exceptional quality, reliability and functionality. Product reference number 01040. Saf-T-Box allows safe, simple installation of fans and fixtures, ideal for new construction and where attic is accessible Supports ceiling fans up to 70 pounds or lighting fixtures up to 150 pounds Includes three knockouts for Conduit or Romex, one Romex clamp 21.5-cubic-inch wiring capacity, electrical box is 2-1/8 inches deep Includes Saf-T-Cap, mounting hardware and instructions