"Ultra Pro" is approved for use in plenum air return ceilings and meets all building code requirements requiring ridged metal chase systems. It has been tested by Underwriters Laboratories, file #MH13768. AC Beverage “Ultra Pro” tubing is made of high quality, 316 Ti-alloy stainless steel. This maintains the corrosion resistance while also giving the benefits of high heat resistance.
AC Beverage “Ultra Pro is a corrugated liner with a unique mechanical, roll lock seam. These seams are gas tight and hold tight no matter how much you bend or shape them.
The UL listing signifies a product of superior quality. The testing is very stringent, and UL ensures consistency of the product by regularly inspecting the manufacturing facility and materials. This tubing is also ULC listed to ULC-S635-00 for use in existing construction.
AC Beverage “Ultra Pro” requires that an experienced professional who works with Beverage Chases or Conduits on a regular basis perform the installation of this flex duct. AC Beverage “Ultra Pro” is tested and listed to the UL 1777 Standard.