Hubbell-Raco 7873RAC 3-1/2-Inch Deep Non-Metallic Cable Electrical Box with 1 x Gang, 4 x NMSC Clamps and 2 x Captive Nails, 2-1/4-Inch x 3-19/32-Inch Self-griping non-metallic sheathed cable entry clamps are integral part of the box Heavy-duty plc. construction 23.0Cu. In. Capacity 1/2 in. Set back tabs for easy placement - no measuring required The product is ul listed