Johnstone Supply - Portland, OR (Serving Rhode Island)
Distributor
Distributor of industrial ducts. Sheet metal ducts, insulated flexible ducts, flexible aluminum ducts and vinyl ducts are available.
Brand Names: AmgFlex, Dundas Jafine, Fujitsu, Hart & Cooley, ProFlex, Quietflex, Snappy, SpeediChannel, Topaz
www.johnstonesupply.com/storefront/supplies...

Superior Sheet Metal - Hudson, NH (Serving Rhode Island)
Manufacturer, Custom Manufacturer
Custom fabricator of spiral & rectangular air ducts & fittings for the HVAC industry. Products include single & double-wall ducts & fittings, 16 gauge welded grease duct & lined ducts including hospital grade closed cell foam ducts. Specialty items are also available including roof curbs, welded ducts & equipment supports & 16 gauge damper sleeves. Materials include G90 galvanized steel, galvaneal, stainless steel, aluminum, cold rolled steel & PCD coated steel. Delivery options include 20 ft. material lifting baskets with 2000 lbs. capacity for easy loading onto roofs & upper floors. No minimum on orders.
www.superiorsm.com/sheet-metal-products.htm...