Irwin 2074136 5-Inch Jaw Capacity 36-Inch Cast Aluminum Pipe Wrench
36" Cast  Aluminum Pipe Wrench features heavy-duty cast aluminum housing that is 40% lighter than cast iron and easier to maneuver.  Drop-forged jaw is heat-treated to resist distortion or breakage.  Easy-spin adjusting nut is heat-treated for durability.  Hardened teeth provide tremendous bite.