Sorry, Marrettes are wire nuts made by Marr. It is like saying Kleenex to describe tissue for blowing your nose. You know the coiled spring in an insulated plastic cone that is used to splice wires. Funny how we call Romex, Loomex. For the last 10 years on the tools I always used wire connectors made by Ideal Industries so why don't I call wire nuts Ideals?
Of course there are not too many wire nut companies that make one for 2 number 6 wires.
I agee with Greg, and most of what Mikesh "up north' said, except for "marretts" as I have no idea what that is.