Weatherproof One Gang Flanged Box Extension Adapter - 4 Outlet Holes 1/2" Gray - A Powder Coated Box Extension Adapter.Weatherproof One Gang Flanged Box Extension Adapter - 4 Outlet Holes 1/2" Gray features include: 12.8 Cubic Inch Capacity Length 5-1/4 X Width 3-1/2 X Depth 1-1/2 Powder Coated Box Extension Adapter Includes Closure Plugs Gasket amp; Mounting Screws Supplied Seamless Die Cast Aluminum 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 Flanged Box Extension Adapter - 4 Outlet Holes 1/2" Gray