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" 10" Diameter + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 6" x 30" or 30" x 6" duct opening (measured at the opening)

but you’ll appreciate the benefits over a long period of time

actual front end outer dimensions are approximately 26

With precise measurements and easy installation

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" 10" Diameter + Product Details Perfect Fit+ 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