PT Brand Straight Aluminum Pipe Wrench * All parts are interchangeable with RIDGID ® 31090 Pipe Wrenches * Sold by Argco: An American business that"s been serving construction companies for 30 years * 1-1/2" Pipe Capacity. This is NOT a RIDGID ® Pipe Wrench * Manufactured to the same specifications as name brand pipe wrenches.