Leviton 30A Surface Mount Black 14-30R 4-Wire Dryer Power Outlet

3-pole, 4-wire grounding outlet for dryers. Lay-in terminals accept up to No. 4 conductor. For use with copper or aluminum wire. 2.15 inch diameter. Black. 30 amp/125 volt/250 volt. NEMA (National Electrical Manufacturer's Association) 14-30R. UL (Underwriter's Laboratories) listed.