23 3300 - Duct Specialties

AJ Manufacturing
Zero total CFM air leak at 10.0” wg.  Custom sized access doors in 1”, 1.7”, 2” & 4” frame & panel thickness with galvanized, galvanealed, stainless steel, aluminum or galvalume door skins. Optional window, latch prep or thermal frame. Pressure relief doors and wall panels also available.

Dynasonics
With roots dating back over 30 years, Dynasonics is dedicated to providing the commercial and industrial acoustical markets with quality products and exceptional customer service. Our line includes Acoustical Panels and Enclosures, Duct Silencers and Acoustical Louvers. Utilizing both independent testing laboratories and our own state-of-the-art testing laboratory, Dynasonics ensures the accuracy of its performance data.

Hardcast, div. CCWI    
Hardcast offers a complete line of insulation adhesives, duct hardware and duct sealants for the HVAC industry. Hardcast's products range from low to fast tack adhesives, rolled and mastic duct sealants and various duct system hardware solutions. Manufacturing HVAC accessories for over 35 years, Hardcast is a name you can trust.

KEES  
KEES INC manufacturers a full line of duct access doors for ductwork, plenums and housings, as well as pressure relief duct access doors.

LLoyd Industries
LLoyd Industries Inc. a World Wide supplier to the wholesale market of a complete line of HVAC air control, ventilation and fire safety products. Products include but not limited to: fire dampers, ceiling radiation dampers, combination fire and smoke dampers, access doors, boot and box assemblies, louvers, and air control dampers. Visit our web-site for more details.

Maxam Metal Products  
Manufacturers of a wide range of balance, aluminum backdraft and fire dampers for over 30 years.  The first to offer a true round fire damper, designed for horizontal or vertical fire separations, MAXAM’s fire dampers are Interteck/Warnock Hersey listed for 1 ½ hours (vertical or horizontal) and carry the Warnock Hersey logo.

Metal Form Manufacturing Company
For over 40 years, Metal Form Manufacturing has supplied the highest quality products to the air control industry for use in commercial, correctional, health care, industrial and institutional projects worldwide. Our air control products include: Extruded aluminum and galvanized steel louvers, control dampers, barometric shutters, gravity ventilators, louvered penthouses, roof curbs and security grilles.

Pottorff
Established in 1928, Pottorff is a leading manufacturer of HVAC products including air control and backdraft dampers, UL rated fire, smoke and ceiling radiation dampers, access doors, louvers and penthouses. Shipping from two factories, our dependable service features a 5 year product warranty, quick-ship capabilities, AMCA/UL certified performance and an in-house elevated temperature airflow lab.

Ruskin Company
is the worldwide leader in the manufacture of dampers and louvers for the HVAC industry. Our full line of innovative control, fire and smoke dampers provide superior air control to help make your building more comfortable and energy efficient.

Ruskin Sound Control
has been a leading manufacturer of engineered duct sound attenuators and acoustical panel systems for over 35 years. We provide custom engineered solutions to solve the most demanding commercial and industrial acoustical challenges. We provide sound solutions for a noisy world.

Swartwout
Control dampers, louvers and ventilators for the industrial HVAC and process industry using all types of material - steel, stainless steel and aluminum. Our Fiber-Aire fiberglass line of products is the solution to even the most demanding of corrosive environments and applications.

Wonder Metals Corp.      
specializing in the fabrication of louvers, dampers & penthouses for over 40 years, including nonstandard shapes, custom blade designs and copper, stainless steel & brass. Creating efficiency that starts with your first contact and continues through production and delivery.

AJ Manufacturing
Zero total CFM air leak at 10.0” wg.  Custom sized access doors in 1”, 1.7”, 2” & 4” frame & panel thickness with galvanized, galvanealed, stainless steel, aluminum or galvalume door skins. Optional window, latch prep or thermal frame. Pressure relief doors and wall panels also available.

Dynasonics
With roots dating back over 30 years, Dynasonics is dedicated to providing the commercial and industrial acoustical markets with quality products and exceptional customer service. Our line includes Acoustical Panels and Enclosures, Duct Silencers and Acoustical Louvers. Utilizing both independent testing laboratories and our own state-of-the-art testing laboratory, Dynasonics ensures the accuracy of its performance data.

Hardcast, div. CCWI    
Hardcast offers a complete line of insulation adhesives, duct hardware and duct sealants for the HVAC industry. Hardcast's products range from low to fast tack adhesives, rolled and mastic duct sealants and various duct system hardware solutions. Manufacturing HVAC accessories for over 35 years, Hardcast is a name you can trust.

KEES  
KEES INC manufacturers a full line of duct access doors for ductwork, plenums and housings, as well as pressure relief duct access doors.

LLoyd Industries
LLoyd Industries Inc. a World Wide supplier to the wholesale market of a complete line of HVAC air control, ventilation and fire safety products. Products include but not limited to: fire dampers, ceiling radiation dampers, combination fire and smoke dampers, access doors, boot and box assemblies, louvers, and air control dampers. Visit our web-site for more details.

Maxam Metal Products  
Manufacturers of a wide range of balance, aluminum backdraft and fire dampers for over 30 years.  The first to offer a true round fire damper, designed for horizontal or vertical fire separations, MAXAM’s fire dampers are Interteck/Warnock Hersey listed for 1 ½ hours (vertical or horizontal) and carry the Warnock Hersey logo.

Metal Form Manufacturing Company
For over 40 years, Metal Form Manufacturing has supplied the highest quality products to the air control industry for use in commercial, correctional, health care, industrial and institutional projects worldwide. Our air control products include: Extruded aluminum and galvanized steel louvers, control dampers, barometric shutters, gravity ventilators, louvered penthouses, roof curbs and security grilles.

Pottorff
Established in 1928, Pottorff is a leading manufacturer of HVAC products including air control and backdraft dampers, UL rated fire, smoke and ceiling radiation dampers, access doors, louvers and penthouses. Shipping from two factories, our dependable service features a 5 year product warranty, quick-ship capabilities, AMCA/UL certified performance and an in-house elevated temperature airflow lab.

Ruskin Company
is the worldwide leader in the manufacture of dampers and louvers for the HVAC industry. Our full line of innovative control, fire and smoke dampers provide superior air control to help make your building more comfortable and energy efficient.

Ruskin Sound Control
has been a leading manufacturer of engineered duct sound attenuators and acoustical panel systems for over 35 years. We provide custom engineered solutions to solve the most demanding commercial and industrial acoustical challenges. We provide sound solutions for a noisy world.

Swartwout
Control dampers, louvers and ventilators for the industrial HVAC and process industry using all types of material - steel, stainless steel and aluminum. Our Fiber-Aire fiberglass line of products is the solution to even the most demanding of corrosive environments and applications.

Wonder Metals Corp.      
specializing in the fabrication of louvers, dampers & penthouses for over 40 years, including nonstandard shapes, custom blade designs and copper, stainless steel & brass. Creating efficiency that starts with your first contact and continues through production and delivery.