ConnectPro 3-Wire Receptacle 6-Gauge Adapter. Features:. Allows 6-gauge wire connection to ConnectPro receptacle. Corrosion-resistant, plated brass electrical components. Easy to install. WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.