Duct Liner - Where to purchase

[voxboy]

I am trying to locate a source for duct liner, either online or local to Houston, TX. I'm looking for any of the products offered by Johns' Manville or Owens. I've contacted both companies looking for suppliers, but the distributers local to Houston aren't interested in my order unless I'm looking for a truck load of it. I need enough for 4 moderately size plenums. Can anyone here assist me?

Regards,

Vox