Jackson Tool 303 Tri-Clamp with 5" - 12" Diameter Capacity Tri clamp pipe alignment tool large 5-Inch to 12-Inch diameter Durable steel frame ideal for jobsite use and in shop use Strong and lightweight for increased productivity and long tool life Versatile can be used for multiple fit ups pipe to pipe, pipe to fitting, pipe to flange, and pipe to tee Compare to Sumner Manufacturing Company ultra clamp made in the USA