Arlington Industries BE1R Ceiling Box extender. for setback ceiling boxes. Fits 3-1/2 and 4" round octagul boxes. Extends box up to 1-1/2 and has 2 hour fire rating.

Arlington Industries FB900 Fan and fixture mounting box for new construction. Fits catheadral ceilings up to 80 degrees or larger. 70lb, 200lb fixture. Paintable textured finish. 14.5 cu. 8" square mounting surface handles fans with larger canopies.

Arlington Industries FB450 White Fan & Fixture Mounting Box, 8 Inch Square, Fits Sloped Ceilings, 70lb-200lb

Arlington Industries FBR415F Plastic vapor box with adjustable steel bracket for fans and fixtures in new construction. Flange forms a protective barrier against air infiltration. 18.3 cu. 70lb fan rated at 24" on center. 110lb fan rated at 16" on center, 90lb rated fixture on 24" on center. 150lb at 16" fixture rated.

Arlington Industries FBRS415 Steel Fan & Fixture Box 15.6 cu. in., 4 Inch Width, 1-1/4 Inch Ceiling Thickness

Arlington Industries FBRS4200R Steel Fan and Fixture Box, 20.0 cu in, 2 Inch Depth, 16"-24" Adjustable Mounting

Arlington Industries FBS1423 Steel one box designed for new construction or retrofit. Side mounts to joist. 70lb fan rated, 50lb fixture rated. 2-3/8 box depth. 23.0 cu.

Arlington Industries FBS405 Steel Fan & Fixture Rated Mounting Box, 6.0 cu. in., For 1/2" or 5/8" Drywall

Arlington Industries FBS415S Steel Octagonal Fan & Fixture Mounting Box, 70 lb Fan Rated, 1-1/2" Depth

Arlington Industries FBS420S Steel Octagonal Fan & Fixture Mounting Box 20.0 Cu Inch, 2 Inch Depth

Hubbell 54171LFBAR 4" Octagon Box, 2-⅛" Deep, 21 cu in, ½" KO NMD90 (10-Pack)

Rab 095800 Box 1/2DVXJ/C-B WITH COVER

Hubbell 54171L 4 In. Octagon Box, 2-1/8 in. Deep, 21 Cu. In., with Raised Ground Screw, 1/2 in. KO, Cable Pryouts, NMD90 (16-Pack)