hi mark

I have just installed a metal pipe system in my shop after agonizing over
pvc or metal. The metal comes in two types one expensive(professional use
and thick galvanized seam-less and heavy) and the other that looks similar
to HVAC pipe but is thicker and make for woodworking dust collecting
ducting.living near Baltimore md I purchased the pipe at a local supply
house (Scarrie Inc.) although a bit more expensive It works for me.


Len