5H418U – Poly Duct & Convection Tube
Punch your own convection tubing. Simply mount un-punched tubing to your jet fan, tie off the far end and turn on the jet fan. Once the tube is inflated, use a small propane torch to heat a tin can mounted on a broom handle and melt the holes at the desired locations.
This item is NOT UV stabilized, but should last thru the heating season.
4 Mil STANDARD CONVECTION TUBING
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