20" X 36" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Height_26in + Product Details Size - 4 X 12 Is CRFG2028 Width_14in

+ Product Details Size - 34"w X 6"h X 2"d (for duct opening measurement only)

+ Product Description Introducing our 18" x 30" or 30" x 18 Floor Grille - a reliable and durable air grill designed for exceptional performance and built to last

PROTECTION - Provides the ultimate defense against any kind of weather

+ Product Details Size – 18" x 22" or 22" x 18" is the size for the duct opening measurement only

Pre-flared ends with nuts are for simple and easy installation

20" X 36" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER EASY AIR FLOW LINEAR BAR GRILLES Height_26in + Product Details Size 4 X 12 Is CRFG2028 Width_14in + Product Details Size 34"w X 6"h X 2"d (for duct opening measurement only) + Product Description Introducing our 18" x 30" or 30" x 18 Floor Grille a reliable and durable air grill designed for exceptional performance and built to last