Round Metal Pipe Reducer & Increaser | 10" to 4" HVAC Duct Reducer or Increaser 30g Gauge | Galvanized Sheet Metal Ducting Connector is Compatible with Duct 4" 6in diameter + Product Details Size –

+ Product Details Size – 10"w X 20"h or 20" x 10" is the size for the duct opening measurement only

With unbeatable airflow sealing capabilities

14"w X 4"h Is The Size For The Duct Opening Measurement Only

actual front end outer dimensions are approximately 36 5/8" width X 14 5/8" height

Round Metal Pipe Reducer & Increaser | 10" to 4" HVAC Duct Reducer or Increaser 30g Gauge | Galvanized Sheet Metal Ducting Connector is Compatible with Duct 4" 6in diameter + Product Details Size –+ Product Details Size & Compatibilty The 10" to 4" round metal pipe reducer & increaser 30 gauge is compatible with duct 10" 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