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" Mounting Bracket + Product Details Size -

+ Product Details Size - 32"w X 20"h is the size for the duct opening measurement only

Actual Front End Outer Dimensions Are 14" Width X 5" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

+ Product Details Size - 32"w X 12"h X 2"d (for duct opening measurement only)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 36" x 14" OR 14" x 36" duct opening (measured at the opening)

+ Product Details Size - 36"w X 30"h is the size for the duct opening measurement only

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" Mounting Bracket + 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