the blue duct
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Engineered and
pressure tested for
air- and water-tight
performance.
Trouble-free,
direct-burial
underground
air-duct system.
Complete
system to
finished
floor.
Won't crush,
rust, mold
or leak.

CAD service
for complete
system design.
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Durable, Completely-sealed Underground Air-duct System—Proven to Last.

AQC Industries is a leading manufacturer and innovator of The BlueDuct® underground air duct systems for heating, ventilation and cooling (HVAC). The BlueDuct is the only proven, direct-burial underground duct system made from ultra-durable, advanced HDPE (high-density polyethylene). The products are engineered to protect against corrosion, mold and mildew, radon, rust, water and air leaks. The BlueDuct systems have been installed in thousands of buildings, for over a decade, with trouble-free, long-term performance.

  • Direct-burial system, requires no insulation, drain tile or cement trench structures
  • Offers energy savings and is eligible to earn LEED credits
  • No PVC coating, no VOCs
  • Engineering and CAD service
  • Certified installers and contractor certification installation training
  • Knowledgeable distributor and representatives
  • Limited Warranty