These two Gang Weatherproof Covers with one Single Receptacle and one Duplex Receptacle are perfect for your twist lock and straight blade equipment hookups.Two Gang Weatherproof Covers - 1 Single Receptacle 1 Duplex Receptacle Gray features include: Gasket Mounting Screws Supplied Seamless Die Cast Aluminum Powder Coat Finish Self Closing Spring Loaded Lids Individual Shrink Wrapped Packaging cULus Listed Order Qty of 1 = 1 Piece Below is more info on our Two Gang Weatherproof Covers - 1 Single Receptacle 1 Duplex Receptacle Gray