20" X 24" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES 3-Pack GPH @ 1 FT: -

GPH @ 1 FT: - 5

Filter Size - 19

Check Valve Installation: Verify that the check valve is correctly installed and the pump-mute wedge is integrated with the valve

+ Product Details Size – 20"w X 14"h or 14" x 20" is the size for the duct opening measurement only

Actual Front End Outer Dimensions Are 4

20" X 24" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES 3-Pack GPH @ 1 FT: -+ Product Details Size 20"w X 24"h is the size for the duct opening measurement only, [Outer Dimensions: 22. 5"w X 26. 5"h] Actual Filter Size 19 3 4"w x 23 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,