36" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES RV Mobile Home If your hole is 14"

If your hole is 14" wide by 20" tall

Universal Fit – Measures 6-1/4" wide x 4-3/4" high x 3" deep

Easy clean Healthy air flow for your HVAC system - noise free components

+ Product Details Size & Compatibility – The 7" galvanized steel metal stick on take-off is compatible with duct 7"

Designed for both walls and ceilings

36" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES RV Mobile Home If your hole is 14"+ Product Details Size 36"w X 12"h is the size for the duct opening measurement only, [Outer Dimensions: 38. 5"w X 14. 5"h] Actual Filter Size 35 3 4"w x 11 3 4" x 1" High Quality High quality rust free, strong aluminum construction with smooth finished edges for easy and safe use; Filter grille features a user friendly plastic latch that requires no screwdriver for opening. Installation Location Sidewall and ceiling. Design Heavier gauge than needed,