24" X 36" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES 3" Round Duct Pipe actual front end outer dimensions

actual front end outer dimensions are approximately 36 5/8" width X 18 5/8" height

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

No Power: Check the power supply and electrical connections

+ Product Details Size - 18"w X 14"h is the size for the duct opening measurement only

24" X 36" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES 3" Round Duct Pipe actual front end outer dimensions+ Product Details Size 24"w X 36"h is the size for the duct opening measurement only, [Outer Dimensions: 26. 5"w X 38. 5"h] Actual Filter Size 23 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,