Adapters and Reducers

Make every transition seamless. Adapters and reducers step between duct sizes, shapes, and connection types — including rectangular-to-round — while protecting airflow, static pressure, and system balance.

Adapters and reducers let you transition between duct sizes, shapes, and connection types without compromising system performance. Whether you're stepping down trunk-line diameter as branches split off, or transitioning from rectangular to round ductwork, these fittings are engineered to maintain airflow and static pressure targets through the change. They're a small component with an outsized impact on system balancing — the wrong transition can create pressure loss and uneven airflow across the whole system.

Engineered Transitions

Engineered to maintain airflow and static pressure through size and shape transitions.

Balances the Whole System

Supports proper system balancing across trunk lines and branch runs.

Rectangular-to-Round Options

Includes rectangular-to-round transitions for flexible system design.

Talk to a Duct Guy or Gal

Get started on a solution tailored to your needs, or explore our range of inline separators, self-dumping hoppers, and bag houses for even more ways to optimize your workspace.