Defroster duct?

[1949B-1-C]

48 dodge truck with optional heater, cannot find 1.5" heater ductwork from heater outlet to defroster. Where have you guys gotten it?! Thank you.

[bach4660]

I used hardware store black discharge hose ($10.00 for 24'), but Rockauto sells it by the foot for around $2.00

[NiftyFifty]

Yep, sump pump hose would work fine...or shop vac hose might be the same 

[fargo52]

I found heat riser flex tubing in that size at our local auto store .