Surface-mount power inlet box. Serves as an interface between your generator s power cord and transfer switch. Nylon resin units include flip lid. 6 In. W. x 5 In. H. x 5 In. D. Operating servicing and maintaining this equipment can expose you to chemicals including engine exhaust carbon monoxide phthalates and lead which are known to the State of California to cause cancer and birth defects or other reproductive harm.