Stick-on Take-Off with Damper | Take Off Duct | This 7" Galvanized Steel Metal Duct is Compatible with Duct 7" Compatible with Duct 7" + Product Details Size – 4 X 12 Is CRFG2028 Width_14in

+ Product Details Size – 10" X 4" is the size for the duct opening (floor/vent hole) measurement only

This grill comes in four different designs

Equipped with a locking eight-tumbler key system

+ Product Details 25" x 20" x 1" replacement air filters for your furnace

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

Stick on Take Off with Damper Take Off Duct This 7" Galvanized Steel Metal Duct is Compatible with Duct 7" Compatible with Duct 7" + Product Details Size – 4 X 12 Is CRFG2028 Width_14in + Product Details Size – 10" X 4" is the size for the duct opening (floor vent hole) measurement only This grill comes in four different designs