Lambro 244 4-Inch Aluminum Duct Connector

4 to 3 Duct Reducer-Ductwork-Heating Duct-Air Duct-Ventilation Fittings

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4" to 3" Sheet metal HVAC Duct Reducer for flexible or metal HVAC Ducts and air vents.

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4" to 3" Sheet metal HVAC Duct Reducer for flexible or metal HVAC Ducts and air vents.

4 Inch to 3 Inch Duct Reducer Duct Increaser.
Sheet metal Ducting Reducer.
Duct Reducer in stock - fast shipping.
Crimped round duct reducer.
Easy to install air duct reducer.

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Lambro 244 4-Inch Aluminum Duct Connector