25" X 20" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES 38 Operating from -40°F to +248°F

Operating from -40°F to +248°F

ensuring secure closure and easy access

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

Filter Size - 31

25" X 20" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES 38 Operating from -40°F to +248°F+ Product Details Size 25"w X 20"h is the size for the duct opening measurement only, [Outer Dimensions: 27. 5"w X 22. 5"h] Actual Filter Size 24 3 4"w x 19 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,