HVAC Premium Round to Oval Elbow Boot | Galvanized Sheet Metal Oval to Round 90-Degree Boot | 6" Oval to Round Elbow Fitting is Compatible with Duct 6" 18" Diameter High Quality – High quality 4 X 12 Is CRFG2028 Width_14in

High Quality – High quality steel construction

+ Product Details Size – 20"w X 34"h is the size for the duct opening measurement only

For Lay-In T-Bar Ceiling - High Quality Aluminum Construction

+ Product Details Perfect Fit & Easy Sizing - Designed for a 28" x 26" OR 26" x 28" duct opening (measured at the opening)

+ Product Details Size - 34"w X 16"h is the size for the duct opening measurement only

HVAC Premium Round to Oval Elbow Boot Galvanized Sheet Metal Oval to Round 90 Degree Boot 6" Oval to Round Elbow Fitting is Compatible with Duct 6" 18" Diameter High Quality – High quality 4 X 12 Is CRFG2028 Width_14in High Quality – High quality steel construction + Product Details Size – 20"w X 34"h is the size for the duct opening measurement only