Round Stack Boot 12" X 3.25" X 7" round Compatible with 7" Duct w18h18 + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 30" x 24" OR 24" x 30" duct opening (measured at the opening)

+ Product Details Size - 12"w X 10"h X 2"d (for duct opening measurement only)

+Product Details Size – 3/8" x 50'

Rigid Design - Noise Free Components - No Vibrating Louvers Etc

+ Product Details Size - 36"w X 34"h X 2"d (for duct opening measurement only)

Round Stack Boot 12" X 3.25" X 7" round Compatible with 7" Duct w18h18 + Product Details Perfect Fit+ 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