Round Metal Pipe Reducer & Increaser | 12" to 4" HVAC Duct Reducer or Increaser 30g Gauge | Galvanized Sheet Metal Ducting Connector is Compatible with Duct 4" Material_Aluminum to Ensure Perfect Smooth Finish

to Ensure Perfect Smooth Finish

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+ Product Details Size & Compatibilty - The 10" to 4" round metal pipe reducer & increaser 30 gauge is compatible with duct 10" to 4"

+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 36" or 36" x 10" duct opening (measured at the opening)

The integrated damper allows precise control over airflow

Round Metal Pipe Reducer & Increaser | 12" to 4" HVAC Duct Reducer or Increaser 30g Gauge | Galvanized Sheet Metal Ducting Connector is Compatible with Duct 4" Material_Aluminum to Ensure Perfect Smooth Finish+ Product Details Size & Compatibilty The 12" to 4" round metal pipe reducer & increaser 30 gauge is compatible with duct 12" to 4". Made in the USA Premium Quality Our galvanized ducting connector is made of high quality galvanized sheet metal. Applications Reducers transition ducts from larger to smaller sizes and ensure smooth, continuous airflow. + Product Description The HVAC Premium Round Metal Pipe Reducer & Increaser is crafted from high