Two-gang. For standard 30A, 50A, and 60A receptacles. Four sides of cover have one set of combination twistouts for 3000 Series Raceway. Hole cut in cover: 3 3/4 x 2 7/8 (95mm x 73mm). Base has five 1/2 trade size KOs. NOTE: Certified to Canadian Safety Standards for sale in Canada. When ordering these products, change the V color prefix to CV or the G color prefix to CG to denote the Canadian versions. Gray