18" X 24" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Compatible With Duct 7in + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 32" x 28" OR 28" x 32" duct opening (measured at the opening)

+ Product Details Size - 10"w X 8"h is the size for the duct opening measurement only

+ Product Details Size – 20"w X 16"h pleated MERV 8 filter for HVAC return filter grille - 3 Pack

Durable stamped steel construction ensures long-lasting performance

this boot smoothly connects round pipes or insulated flex ducts to wall stacks

18" X 24" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Compatible With Duct 7in + Product Details Perfect Fit+ Product Details Size 18"w X 24"h is the size for the duct opening measurement only, [Outer Dimensions: 20. 5"w X 26. 5"h] Actual Filter Size 17 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,