7'' Diameter x 60'' Long Oval Duct Pipe (5 Pack) - 30 Gauge Galvanized Steel Sheet Metal Pipe by HVAC Premium - Crimped End Connection (Total: 25 Feet) Height_22in + Product Details Size – 4 X 12 Is CRFG2028 Width_14in

+ Product Details Size – 18" x 20" or 20" x 18" is the size for the duct opening measurement only

+ Product Details 18"w X 18"h is the size for the drywall opening measurement only

+ Product Details Size - 18"w X 16"h is the size for the duct opening measurement only

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

height: 22px

7'' Diameter x 60'' Long Oval Duct Pipe (5 Pack) 30 Gauge Galvanized Steel Sheet Metal Pipe by HVAC Premium Crimped End Connection (Total: 25 Feet) Height_22in + Product Details Size – 4 X 12 Is CRFG2028 Width_14in + Product Details Size – 18" x 20" or 20" x 18" is the size for the duct opening measurement only + Product Details 18"w X 18"h is the size for the drywall opening measurement only