Round Metal Pipe Reducer & Increaser | 9" to 6" HVAC Duct Reducer or Increaser 30g Gauge | Galvanized Sheet Metal Ducting Connector is Compatible with Duct 6" 38 + Product Details Size - 4 X 12 Is CRFG2028 Width_14in

+ Product Details Size - 14"w X 32"h X 2"d (for duct opening measurement only)

Ideal for VAV systems

+ Product Details Size - 40"W X 4"H is (for duct opening measurement only)

Ideal for Walls & Ceilings: Designed for seamless installation in standard 16" X 12" duct openings

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 25" OR 25" X 14" duct opening (measured at the opening)

Round Metal Pipe Reducer & Increaser 9" to 6" HVAC Duct Reducer or Increaser 30g Gauge Galvanized Sheet Metal Ducting Connector is Compatible with Duct 6" 38 + Product Details Size 4 X 12 Is CRFG2028 Width_14in + Product Details Size 14"w X 32"h X 2"d (for duct opening measurement only) Ideal for VAV systems