15 60r July 8, 2019 16 32 64 128 15 60r receptacle 15 60r hubbell 15 60r plug 15 60r16 15 60r cover plate 15 60r17 15 60r outlet 15 60r15 15 60r16 tires 15 60r cover 15 60r leviton 2 15 60r16 185 60r 15