4" X 12" Modern Floor Register Grille with Dampers - Contempo Slotted Grate - HVAC Vent Duct Cover - Chrome tool bags + Product Details Size –

+ Product Details Size – 28" x 30 or 30" x 28" is the size for the duct opening measurement only

The SK-5 Japanese Alloy Steel V Blade guarantees strong

+ Product Details Size – 28"w X 36"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 36" or 36" x 12" duct opening (measured at the opening)

length with fittings on each end and cut marks every 19

4" X 12" Modern Floor Register Grille with Dampers - Contempo Slotted Grate - HVAC Vent Duct Cover - Chrome tool bags + Product Details Size –+Product Details Size 4"h x 12"w is the size for the duct opening measurement only, actual front end outer dimensions are approximately 5. 5" width x 13. 75" height. High Quality Solid rigid steel body for durability and reliability with dampers operable by switch for airflow directional control. Installation Location Floor. Design Premium plated finish and modern contempo design forming a luxurious & impressive piece for your home. Quality Packaging