Is there anywhere I can find a drag chain that is designed to hold lightweight flexible spiral dust collection tubing about 6 - 8 inches or 150-200 mm in diameter?

It's irritating that everything else for wiring on a commercial table CNC wood mill is installed in a drag chain, but the dust collection duct is just flopped randomly across the table because there's no drag chain big enough to hold it.

Standard drag chains / energy chains become incredibly expensive for larger versions because they assume you will be stuffing it with heavy hydraulic hoses or electrical cables, but a dust collection tube weighs almost nothing.

I don't need a drag chain that costs US$50+ per link at this large but lightweight size.