Tjernlund Products DB-2 Duct Booster 321894-709 Always confirm your full compressor

Always confirm your full compressor model and serial number to ensure the gasket bore and reed length match your specific landing

As a genuine Cleveland Controls air switch

we recommend verifying the condition of your mounting hardware and shaft during the replacement process

Common Questions: What is the maximum temperature rating for this regulator

Why is replacing a damaged blower housing important

Tjernlund Products DB-2 Duct Booster 321894-709 Always confirm your full compressorProfessional grade airflow solutions require hardware that stands up to static pressure. The Tjernlund Products DB 2 Duct Booster is a high performance inline centrifugal fan designed to increase the delivery of conditioned air to poorly served branch ducts. Engineered for versatility, the DB 2 integrates into round ducts (5 to 8 inch) or rectangular ducts as shallow as 3. 25 inches. With a peak capacity of 275 CFM, this unit effectively overcomes the