24" X 18" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Width_24in + Product Details Size –

+ Product Details Size – 36"w X 18"h is the size for the duct opening measurement only

guaranteeing efficient ventilation throughout your space

Ideal for Walls & Ceilings: Designed for seamless installation in standard 14" X 10" duct openings

Universal Heavy Duty – Fits virtually any air conditioning mini split unit

+ Product Details Size – 50"w X 20"h is the size for the duct opening measurement only

24" X 18" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Width_24in + Product Details Size –+ Product Details Size 24"w X 18"h is the size for the duct opening measurement only, [Outer Dimensions: 26. 5"w X 20. 5"h] Actual Filter Size 23 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,