| Type | Style | Company Name | Link |
|---|---|---|---|
| Air | FlexHead Industries | http://www.flexhead.com | |
| Air | Vesuvius USA Corp. | http://www.knaufinsulation.us http://www.morganthermalceramics.com | |
| Fume Exhaust Ducts | MagneGrip | http://www.magnegrip.com | |
| Fume Exhaust Ducts | Nelson Firestop Products | http://www.nelsonfirestop.com | |
| Grease Ducts | Vents | Nelson Firestop Products | http://www.nelsonfirestop.com |
| Duct Accessories | Turning Vanes | Aero-Dyne Sound Control | http://www.aero-dyne.net |
| Duct Accessories | Sealants | Anti-Seize Technology | http://www.astinfo.com |
| Duct Accessories | Flexible Connectors | Barnett | http://www.e-barnett.com |
| Duct Accessories | Sealants | Boss Products | http://www.accumetricinc.com |
| Duct Accessories | Sealants | Cain Mfg. Co., Inc. | http://www.cainmfg.com |
| Duct Accessories | Turning Vanes | Cain Mfg. Co., Inc. | http://www.cainmfg.com |
| Duct Accessories | Clamps - Flexible Duct | Clampco Products Inc. | http://www.clampco.com |
| Duct Accessories | Sealants | Controlled Release Technologies, Inc. | http://www.cleanac.com |
| Duct Accessories | Sealants | Dow Corning Corp. | http://www.dowcorning.com |
| Duct Accessories | Flexible Connectors | Dryerbox, In-O-Vate Technologies | http://www.dryerbox.com |
| Duct Accessories | Flexible Connectors | Ductmate Industries, Inc. | http://www.ductmate.com |
| Duct Accessories | Sealants | Ductmate Industries, Inc. | http://www.ductmate.com |
| Duct Accessories | Flexible Connectors | Duro Dyne Corp. | http://www.durodyne.com |
| Duct Accessories | Sealants | Duro Dyne Corp. | http://www.durodyne.com |
| Duct Accessories | Flexible Connectors | Durst Corp. | http://www.durstcorp.com |
| Duct Accessories | Flexible Connectors | Flex-Weld, Inc. | http://www.flex-weld.com |
| Duct Accessories | Flexible Connectors | Hodes Co. | http://www.hodesco.com |
| Duct Accessories | Flexible Connectors | Malco Products, Inc. | http://www.malcotools.com |
| Duct Accessories | Clamps - Flexible Duct | National System of Garage Ventilation, Inc. | http://www.nsgv.com |
| Duct Accessories | Sealants | The RectorSeal Corp. | http://www.rectorseal.com |
| Duct Accessories | Turning Vanes | Tuttle & Bailey / Hart & Cooley | http://www.tuttleandbailey.com |
| Fabric Air Diffuser Systems | Air Diistribution Concepts | http://www.adctubes.com | |
| Fabric Air Diffuser Systems | FOF Inc. | http://www.fabricairducts.com | |
| Flexible | Metallic Pre-Insulated | Anco Products, Inc. | http://www.ancoproductsinc.com |
| Flexible | Non-Metallic, Pre-Insulated | Anco Products, Inc. | http://www.ancoproductsinc.com |
| Flexible | Metallic Pre-Insulated | ATCO Rubber Products, Inc. | http://www.atcoflex.com |
| Flexible | Non-Metallic, Pre-Insulated | ATCO Rubber Products, Inc. | http://www.atcoflex.com |
| Flexible | Non-Metallic, Pre-Insulated | CertainTeed Corp. | http://www.certainteed.com |
| Flexible | Metallic Pre-Insulated | Deflecto Corp. | http://deflecto.com |
| Flexible | Non-Metallic, Pre-Insulated | Deflecto Corp. | http://deflecto.com |
| Flexible | Non-Metallic, Pre-Insulated | Fabric Air, Inc. | http://www.fabricair.com |
| Flexible | Non-Metallic, Pre-Insulated | Flexible Duct Machinery.com | http://www.flexibleductmachinery.com |
| Flexible | Metallic Pre-Insulated | Flexmaster USA | http://www.flexmasterusa.com |
| Flexible | Non-Metallic, Pre-Insulated | Flexmaster USA | http://www.flexmasterusa.com |
| Flexible | Non-Metallic, Pre-Insulated | HBD / Thermoid, Inc. | http://www.hbdthermoid.com |
| Flexible | Metallic Pre-Insulated | Plenums Inc. | http://www.plenums.com |
| Flexible | Metallic Pre-Insulated | Z-Flex U.S., Inc. | http://www.z-flex.com |
| Grease | FlexHead Industries | http://www.flexhead.com | |
| Grease | Nelson Firestop Products | http://www.nelsonfirestop.com | |
| Grease | Selkirk Metalbestos | http://www.selkirkcorp.com | |
| Grease | Unifrax Corp. | http://www.unifrax.com | |
| Grease | Utility Service Associates | http://www.fluidcenter.com | |
| Grease | Vesuvius USA Corp. | http://www.knaufinsulation.us http://www.morganthermalceramics.com | |
| Machines | Roto-Die, Inc. | http://www.roto-die.com | |
| Machines | Spiral-Helix, Inc. | http://www.spiral-helix.com | |
| Rigid | Metallic | Aero-Dyne Sound Control | http://www.aero-dyne.net |
| Rigid | Non-Metallic | Air Plastics, Inc. | http://www.airplastics.com |
| Rigid | Metallic | ATCO Rubber Products, Inc. | http://www.atcoflex.com |
| Rigid | Non-Metallic | CertainTeed Corp. | http://www.certainteed.com |
| Rigid | Non-Metallic | Corzan Piping Systems | http://www.corzancpvc.com |
| Rigid | Non-Metallic | Duall Div., Met-Pro Corp. | http://www.dualldiv.com |
| Rigid | Non-Metallic | Fabric Air, Inc. | http://www.fabricair.com |
| Rigid | Non-Metallic | Johns-Manville | http://www.jm.com |
| Rigid | Non-Metallic | Knauf Insulation | http://www.knaufinsulation.us |
| Rigid | Metallic | Nordfab, Quick-Fit Duct Product Group | http://www.nordfab.com |
| Rigid | Metallic | Seal-Tite | http://www.sealtitehvac.com |
| Rigid | Metallic | SEMCO Inc. | http://www.semcoinc.com/ |
| Rigid | Non-Metallic | Spiral Pipe of Texas, Inc. | http://www.spotusa.com |
| Rigid | Metallic | The Soffi-SteeI System | http://www.soffisteel.com |
| Rigid | Metallic | Thermo Mfg., Inc. | http://www.thermopan.com |
| Rigid | Metallic | Van-Packer | http://www.vpstack.com |
| Spiral Welded | Spiral Pipe of Texas, Inc. | http://www.spotusa.com | |
| FlexHead Industries | http://www.flexhead.com | ||
| MagneGrip | http://www.magnegrip.com | ||
| Selkirk Metalbestos | http://www.selkirkcorp.com |