4 Octagon Ceiling Box with Bar Hanger Depth: 1-1/2 Metallic By Pass & Seymour 65501

4 Inch Octagon Ceiling Box with Bar Hanger Metallic 1-1/2 Inch Deep Side Knockouts: (3) 1/2 Inch & (2) Priouts Bottom Knockouts (2) 1/2 Inch Adjustable Length: 16 to 24 Inch. Fan Weight 70 lbs Fixture Weight 110 lbs 16 Cubic InchesKnockout Diameter: 1/2 inMounting: BracketMounting: Screw OnLength: 16 – 24 inMaterial: SteelMounting: Nail OnDepth: 1 1/2 inCubic Inches: 16 inLength: Adjustable