4"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 5.25"W x 5.25"H] Return How To Measure A Grille Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

How To Measure A Grille

+ Product Details Size – 24" x 30" or 30" x 24" is the size for the duct opening measurement only

adds an extra layer of protection

+ Product Details Size – 16" x 26" or 26" x 16" is the size for the duct opening measurement only

+ Product Details Size – 10"w X 14"h or 14" x 10" is the size for the duct opening measurement only

4"W X 4"H [Duct Opening] Linear Aluminum Clip On Bar Return Air Grille [Outer Dimensions: 5.25"W x 5.25"H] Return How To Measure A Grille Compatible With Duct 7in Applications This sheet metal DDAG A 1212 How To Measure A Grille + Product Details Size – 24" x 30" or 30" x 24" is the size for the duct opening measurement only