Description
The Tjernlund Products DB2 Duct Booster 6″ DIA W/25′ 150 CFM 8″ DIA W/25′ 250 CFM are in-line fan units that increase airflow through ductwork in heating and cooling equipment. It operates by improving air movement within pipes to improve distribution across extended or restricted areas. Used in residential and light commercial setups within HVAC systems, it supports balanced temperature delivery and consistent air circulation. It maintains steady circulation, reduces uneven heating or cooling, and enhances system efficiency, resulting in improved comfort, better air distribution, and reliable performance in ducted ventilation operations.









