12" X 18" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Round Pipe + Product Details Size -

+ Product Details Size - 25"w X 8"h is the size for the duct opening measurement only

Save Money – Save money on your bills today by using our strong magnetic vent covers to seal air and prevent any heating or cooling to go to waste in vacant spaces

Design – Works for all Air Conditioning applications including Ductless Mini-Split

Experience enhanced indoor comfort with our 8" Radial Damper

12" X 18" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Round Pipe + Product Details Size -+ Product Details Size 12"w X 18"h is the size for the duct opening measurement only, [Outer Dimensions: 14. 5"w X 20. 5"h] Actual Filter Size 11 3 4"w x 17 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,