Curb Adapters Curbs & Accessories
Designed, Built & Delivered Right. Everytime.

Curb Adapters

Need to retrofit? Mate any existing roof curb to any new commercial HVAC unit, no roofer required. Simply remove the existing unit then set the curb adapter on top. Now proceed with the installation of your new rooftop unit.


  • One piece welded
  • Heavy gauge galvanized steel
  • Fully insulated
  • Supply transitions installed
  • Welds sprayed for rust prevention
  • Designed for low static


  • Horizontal supply / return
  • Vibration isolation
  • Filters
  • Wind / seismic
  • Zone dampers
  • Acoustical
  • Lifting lugs
  • Custom design

Are all curb adapters created equal?

The truth is inexpensive curb adapters may be costing you more than you think! Most manufacturers design their curb adaptors without considering what is best for airflow. They plenumize the adapter which causes static pressure to rise and as a result causes airflow problems as well as well as reduces energy efficiency. Cambridgeport is one of the original manufacturers of curb adapters and our staff is well versed in their design. Use Cambridgeport adapters and know you are getting a high quality retrofit product everytime!

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