Dowels are 3" in length and can be used at expansion joints in pipe rails by welding one end and using an epoxy glue on the other end. To create an expansion joint, weld only one end.
Tube Sizes Available: 1-1/2" O.D. in 16 Ga.
Pipe Sizes Available: 1-1/4", 1-1/2" in Schedule 40 and 2" in Schedule 40