Grayloy iron or copperfree aluminum construction with epoxy powder coat finish, stainless steel screws, neoprene gaskets|Grayloy iron bodies with cast covers and gaskets are approved for use in wet locations|Unique Wedge-Lok clip cover design allows easy removal without damaging the conduit body|Flat back design fits flush against flat surfaces for more stable installation and provides more interior room for wire pulling and splicing|Interchangeable with competitors' form 7 bodies, gaskets and covers applications and installation dimensions are identica