Flexible Duct & Thermo Sleeves

Designed for efficient installation and engineered to precise standards, our flexible duct sets the standard in quality and dependability.

Unique to others in the industry, we manufacture flexible ductwork without the use of glues or adhesives. The mechanical-locked inner core maintains its shape at all 90° bends and offsets, thus eliminating the need for extra reinforcement.  This manufacturing process produces a flexible duct with the highest performance credentials of any flexible duct.

All of the Flexmaster  U.S.A.® flexible duct carry the ETL mark, which is tested to UL181 standards.

The Flexmaster U.S.A.® 20 year warranty is unsurpassed in the HVAC ductwork industry.

Insulated

1B

1M

3B

3M

4B

4M

5B

5M

6B

6M

9M

Non-Insulated and Thermo Sleeves

1NI

3NI

4NI

5NI

 

Thermo Sleeves