Rolled over Edges
For added strength and rigidity during installation and shipping
Antimicrobial Coating
Antimicrobial-treated ductwork available on entire range of SPIRO products
Dimpled Seams
Mechanically formed indentation evenly spaced to prevent spiral seam slippage
Rubber Gaskets
Proven to outperform the toughest standards, Leakage Class 3, that are addressed by SMACNA and ASHRAE from -20 to +12 In. W.G.
Double Wall
Installs like single wall with fast single slip connections; no more double slip connections

For over 40 years innovation has been a cornerstone for success at Lindab. Whether it's double-lipped gaskets or dimpled seams, Lindab is proud to have started it all with its ground-breaking technology. And, as the world's leading manufacturer of HVAC duct systems, Lindab's research and development centers continue to revolutionize the industry.

 

 

 

 

 

 
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Rolled over Edges SPIRO+AgION Dimpled Seams Double Wall Rubber Gaskets