Schebler Chimney Systems

UL-103 Listed, Prefabricated Chimney Systems for Boiler and Generator Exhaust
UL-1738 Listed Special Gas Vent Systems for High-Efficiency Appliances
UL-1978 Listed / UL-2221 Classified Zero Clearance to Combustibles, 2 Hour Fire Rated Grease Duct Systems, Round and Flat Oval
Sequence Draft ControlTM Damper Systems, Wing Induction Fans
Engineered Free Standing Stack Systems

FIRESAFE Fire Rated Ductwork Ltd

CASWELL FIRESAFE® Non-Coated Fire Resisting Ductwork systems rated up to 4 hours. UL® listed – File R38800 – Ventilation Duct Assemblies
Designed in Britain – Manufactured in the U.S.


AT-PANL solutions TM, Acoustic / Thermal Panel Systems
MD-PANL solutions TM, Modular Duct Systems
IN-PANL solutions TM, Industrial Panel Systems
FR-PANL solutions TM, Fire Rated Panel System

Atlantic Air Products

Manufactured Duct Systems, Round / Flat Oval Spiral Duct, Gasket Fittings, Perforated Spiral Diffusers, Welded Exhaust Systems

Mestek Commercial Damper and Louver Group

UL-555A Life Safety Dampers, Building Louvers, Control & Balancing Damper, Roof Hoods, Louvered Penthouses

Kem-Tuff TM

Chemical Air Transfer Systems, Factory Mutual Listed Fluoropolymer Coated Stainless Steel for Acid Exhaust

iac acoustics

HVAC Duct Sound Attenuators, Acoustical / Thermal Plenum Panel Systems, Acoustical Stack Silencers, Acoustical Louvers

Duct Incorporated

Laser Welded Clamp-Together Duct Systems, Dust and Mist Collection Applications