3M(TM) Performance Plus(TM) Wire Connector T/R+JUG, 750/jug Offers a strong bite for a long-lasting connection in all your pigtail applications An expandable spring offers more wire uptake and reusability The T/R+ is dual color-coded so 1 connector replaces your traditional tan and red connectors Great for all types of jobs - from industrial and residential construction, to automotive, marine and appliance applications Use with copper conductors ranging from 22 to 8 AWG