Lambro Round Aluminum Transition Fitting

Manufactured in United states Easy to use Highly durable For use with rigid ductwork can be used as transition in kitchens and other applications Galvanized Steel construction Made in the USA Lambro represents Innovation, Quality, Service and Reliability since 1970 Lambro 3 1/4 Inch x 10 Inch to 7 Inch Aluminum Transition is for use with rigid ductwork. Range hoods must be vented using metal ductwork. The minimum side duct allowed on most range hoods is 3-1/4-inches by 10-inches, which is equivalent to a 6-inch round. Lambro manufactures aluminum and galvanized ductwork for range hood and downdraft venting applications. Lambro represents innovation, quality, service and reliability for over 40-years.