GAF
Founded in 1886, GAF is the largest roofing manufacturer in North America. GAF offers a variety of fabricated metal ductwork options including in-wall duct systems, insulated flexible ductwork, manufactured housing systems, plenums & air returns, register boxes, roof top venting, starting collars & take-iffs, transitions & connectors, trunk & branch lines, and vents.
4specs Discussion Forum - Great place to ask questions about specifications, products and technical data. Free - no registration required to read or post (subject to moderation).
See also:
23 3130 - Fabric Ducts
23 3300 - Duct Specialties
23 3700 - Air Grilles, Outlets and Inlets
GAF
Founded in 1886, GAF is the largest roofing manufacturer in North America. GAF offers a variety of fabricated metal ductwork options including in-wall duct systems, insulated flexible ductwork, manufactured housing systems, plenums & air returns, register boxes, roof top venting, starting collars & take-iffs, transitions & connectors, trunk & branch lines, and vents.