18" X 16" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES tool bag + Product Details Size - Suitable for all AC 8in diameter 12125SDCLNGBX

+ Product Details Size - 8"w X 36"h X 2"d (for duct opening measurement only)

+ Product Details Size - 6"w X 6"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 36 5/8" width X 28 5/8" height

compatible with duct 6" | 10 PACK of 2' pipe - 20-foot length when connected– 30 gauge thick & made of thick & durable galvanized sheet metal

18" X 16" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER EASY AIRFLOW LINEAR BAR GRILLES tool bag + Product Details Size Suitable for all AC 8in diameter 12125SDCLNGBX + Product Details Size 8"w X 36"h X 2"d (for duct opening measurement only) + Product Details Size 6"w X 6"h is the size for the duct opening measurement only