Killark weatherproof electrical boxes are manufactured to accommodate wiring devices and provide an opening to splice, tap or pull conductors for maintenance and future system changes. These boxes have copper-free aluminium construction with electro-statically applied powder coating for decreased ductility and maximum corrosion resistance. They are provided with tapered threads (NPT with integral bushings) for superior seal and also have internal grounding screws for comfortable mounting. Choose from a range of these electrical boxes, available in 3/4 and 1/2 inch hub sizes.