Round Stack Boot 12" X 3.25" X 7" round Compatible with 7" Duct Return 75" Width X 31

75" Width X 31

+ Product Details 12"w X 4"h Is The Size For The Duct Opening Measurement Only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 6" or 6" x 10" duct opening (measured at the opening)

installation is a breeze

+ Product Details Size - 22"w X 12"h is the size for the duct opening measurement only

Round Stack Boot 12" X 3.25" X 7" round Compatible with 7" Duct Return 75" Width X 31+ Product Details Size The size of a galvanized sheet metal stack boot is 12" X 3. 25" X 7". It is compatible with duct 7". Design The stack boot at the bottom of the stack allows a transition from an ordinary large round or rectangular duct to a thin wall mounted duct. Applications The straight boot is used for a straight line transition going from round pipe or insulated flex duct to wall stack. Premium Quality Our straight round stack boot is made