Weatherproof One Gang Box Extension Ring - Gray - A seamless One Gang Weatherproof Box Extension Ring.Weatherproof One Gang Box Extension Ring - Gray features include: 9.3 Cubic Inch Capacity Length 4-9/16 X Width 2-13/16 X Depth 1 Gasket amp; Mounting Screws Supplied Seamless Die Cast Aluminum One Gang Weatherproof Box Extension Fits All Universal Type Weatherproof Boxes Powder Coat Finish Individually Shrink Wrapped Packaging cULus Listed Order Qty of 1 = 1 Piece Below is more info on our Weatherproof One Gang Box Extension Ring - Gray