Round Metal Pipe Reducer & Increaser | 20" to 18" HVAC Duct Reducer or Increaser 26g Gauge | Galvanized Sheet Metal Ducting Connector is Compatible with Duct 18" Material_Anodized Aluminum Ideal for Walls & Ceilings:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 6" X 6" duct openings

3-cone supply grille

+ Product Details Size - 36"w X 6"h X 2"d (for duct opening measurement only)

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Round Metal Pipe Reducer & Increaser | 20" to 18" HVAC Duct Reducer or Increaser 26g Gauge | Galvanized Sheet Metal Ducting Connector is Compatible with Duct 18" Material_Anodized Aluminum Ideal for Walls & Ceilings:+ Product Details Size & Compatibilty The 20" to 18" round metal pipe reducer & increaser 30 gauge is compatible with duct 20" to 18". 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