Steel Dragon Tools 48" Aluminum Straight Pipe Wrench Fits RIDGID 31115 Model 848, 6" Capacity Straight pipe wrench has a 6-inch pipe capacity, allowing it to be used for a variety plumbing applications. Bottom jaws is replaceable, reducing cost and increasing tool life. I-beam frame helps keep the tool from weighing down the operators hand without sacrificing overall durability. Aluminum construction is nearly 40% lighter than comparable cast-iron wrenches. Weight: 18 lbs.