These are FDA black buna, 1-1/2″ tri-clamp gaskets. Use these gaskets to fit tri-clamp ferrules that have a 2″ outside diameter (OD).
This ferrule size is commonly used with 1 or 1-1/2″ tube inside diameter (ID) tri-clamp fittings.
Use this size for any SABCO kettle or Brew-Magic System Tri-Clamp mounted dial thermometers.
Pkg. of 3