RECTANGULAR PLASTIC DUCTWORK SYSTEMS

Rectangular & Square

Harrison follows SMACNA specs, Harrison specs, or customer specifications. These guidelines and our 55+ years of experience allow our team to design and fabricate your ductwork system from a variety of materials including:

  • Polyvinyl Chloride (PVC)
  • Corzan® CPVC
  • Polypropylene (PP)
  • Kynar (PVDF)
PVC rectangular duct CPVC rectangular elbow

PVC & CORZAN® CPVC Plastic Ductwork – Built to Perform

We fabricate high-quality PVC and CPVC plastic ductwork engineered for corrosive and demanding environments. All ductwork is manufactured to SMACNA standards or customer-specific specifications, ensuring precision, durability, and long-term performance.

Compared to metal duct systems, PVC and CORZAN® CPVC ductwork offers a significantly longer service life, resisting corrosion, chemical attack, and premature degradation—reducing maintenance and replacement costs over time.

Available in rectangular and square configurations, our duct systems are custom fabricated to meet your exact dimensional, material, and performance requirements. We also offer pre-built duct sections to streamline field installation, helping reduce labor time, installation complexity, and overall project costs.

Ideal for industrial ventilation, chemical processing, and laboratory exhaust applications.