Rectangular Duct End Cap | 28" X 10" End Cap Material_Copper + Product Details Size - 4 X 12 Is CRFG2028 Width_14in

+ Product Details Size - 6"w X 20"h X 2"d (for duct opening measurement only)

How To Measure A Floor RegisterOverall Size: Measure the size of the opening

+ Product Details Size – 8"w X 25"h is the size for the duct opening measurement only

Installation Location – Sidewall and ceiling

+ Product Details Size - 32"w X 10"h X 2"d (for duct opening measurement only)

Rectangular Duct End Cap 28" X 10" End Cap Material_Copper + Product Details Size 4 X 12 Is CRFG2028 Width_14in + Product Details Size 6"w X 20"h X 2"d (for duct opening measurement only) How To Measure A Floor RegisterOverall Size: Measure the size of the opening