30" X 36" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLE 10in diameter actual front end outer dimensions

actual front end outer dimensions are approximately 18 5/8" width X 20 5/8" height

actual front end outer dimensions are approximately 24 5/8" width X 16 5/8" height

14" Circular Round Aluminum HVAC Supply Grille Air Diffuser - With Butterfly Damper - Vent Duct Cover

+ Product Details Size - 24"w X 28"h is the size for the duct opening measurement only

+ Product Details 22"w X 22"h is the size for the drywall opening measurement only

30" X 36" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLE 10in diameter actual front end outer dimensions+ Product Details Size 30"w X 36"h is the size for the duct opening measurement only, [Outer Dimensions: 32. 5"w X 38. 5"h] Actual Filter Size 29 3 4"w x 35 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,