almost any hvac supply house or duct supply but you have to get all the same brand as its not interchangeable
Kennz I have Metalbestos now IT's old and rusty, I'm looking to get a new roof put on the flashing will more than likely get trashed. Thats why I'm looking to find the right stuff. I know very well its not interchangeable. And it seems like everyone has Hart & Cooley stuff.
ok i didnt understand they make adapters i belive to go from one to another brand its an adjustable length one end will slide over the exsisting male end of your current brand than the other end will be the end of whatever brand you buy from that supply house. it tightens over your exsisting brand by compression kinda like a band clamp ask if they have an adjustable 1 footer for example, or whatever the first straight length you need