Leviton 66W74 20 Amp, 125/250 Volt, NEMA L14-20, 3P, 4W, IP66 Rated Cover, Grounding, Corrosion Resistant, Wetguard, Single Locking Inlet, Yellow Impact and chemical resistant Valox PBT cover and lid provide extended life in abusive environments Spring-loaded flip lid cover ensures a watertight seal when the cover is closed Dual-hasp provides additional lockout/tagout option for added security Electro less nickel-coated brass blades, contacts, wiring screws and wiring clamps resist corrosion Stainless steel mounting and assembly screws provide corrosion resistance; triple-drive head facilitates proper tightening