14"W X 4"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 15.875"W X 5.875"H] RV Mobile Home Ideal for Walls & Ceilings:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 14" X 4" duct openings

actual front end outer dimensions are approximately 34 5/8" width X 8 5/8" height

actual front end outer dimensions are approximately 32 5/8" width X 20 5/8" height

Filter Size - 21

+ Product Details Perfect Fit & Easy Sizing - Designed for a 24" x 20" OR 20" x 24" duct opening (measured at the opening)

14"W X 4"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 15.875"W X 5.875"H] RV Mobile Home Ideal for Walls & Ceilings:+ Product Details Size 14"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 875" width X 5. 875" height. High Quality High quality aluminum with counter sunk screw holes (screws included) and no sharp edges. Design Unrestricted airflow For Your HVAC system noise free components no vibrating louvers etc. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was