Round Metal Pipe Reducer & Increaser | 7" to 6" or 6" to 7" HVAC Duct Reducer or Increaser 30g Gauge | Galvanized Sheet Metal Ducting Connector is Compatible with Duct 6" return grille + Product Details Size -

+ Product Details Size - 12"w X 16"h is the size for the duct opening measurement only

Design – Unrestricted airflow for your HVAC system - adjustable one-way louver with full horizontal airflow directional control - single deflection supply grill with 96% airflow - noise free components - no vibrating louvers etc

+ Product Details Size & Compatibility – The size of the side round ceiling box is 12" X 12" X 4" and it is compatible with duct 4"

+ Product Details Size - 14"w X 28"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 36" x 18" OR 18" x 36" duct opening (measured at the opening)

Round Metal Pipe Reducer & Increaser | 7" to 6" or 6" to 7" HVAC Duct Reducer or Increaser 30g Gauge | Galvanized Sheet Metal Ducting Connector is Compatible with Duct 6" return grille + Product Details Size -+ Product Details Size & Compatibilty The 7" to 6" round metal pipe reducer & increaser 30 gauge is compatible with duct 7" to 6". 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 quality