Fan curb adapters may fall under the broader curb adapter category, but their design is more streamlined—built for a single purpose: directing airflow in one direction, either in or out. Unlike multi-port curb adapters used for HVAC units, fan adapters feature a single, focused opening to match the performance demands of exhaust or intake systems.

At Curbco, we bring the same level of precision and care to every fan curb adapter we build. Because even a minor miscalculation can cause airflow resistance, strain the fan, and reduce energy efficiency, every detail matters. With over 30 years of experience, you can trust Curbco to deliver a fan curb adapter that performs reliably—right from the start.