Leviton 4980-GY 1-Gang Single 20A or 30A Locking Receptacle Wallplate Cover, Weather Resistant Thermoplastic, Device Mount, Vertical, Gray Impact-resistant thermoplastic covers and bases Self closing lids Weather-resistant gaskets Stainless steel springs Full compliance with UL, CSA and NEC section 410-57 requirements for damp and wet locations with cover closed