36" X 18" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Custom Louvers + Product Details Size - Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size - 28"w X 20"h X 2"d (for duct opening measurement only)

Actual Filter Size – 15 3/4"w x 21 3/4" x 1"

our Circular Air Supply Valves are ideal for low and medium pressure ventilation air conditioning systems

Crafted for durability and rust-resistance

Rustproof and built to last in moisture-prone environments

36" X 18" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER EASY AIRFLOW LINEAR BAR GRILLES Custom Louvers + Product Details Size Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size 28"w X 20"h X 2"d (for duct opening measurement only) Actual Filter Size – 15 3 4"w x 21 3 4" x 1"