[SOLVED] Replacement plug head for NEMA 15A 10 AWG extension

20A plugs are somewhat rare. My house has 2 and each is on a dedicated 20A CB. They were intended for golf cart charging. They will accept a 15A or 20A plug.

I receommend using 10 gage copper not copper coated extension cords with 15A plugs for RVs because 10 gauge has less voltage drop.