10" X 10" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 12 5/8"] Adjustable Return 75" width X 15 actual front end outer RG1612AL Compatible with Duct 4"
Baker’s notes & crumb story
Description
75" width X 15
+ Product Details Size - 26"w X 4"h is the size for the duct opening measurement only
excluding the old vent cover
Think of the diameter as a straight line from one end to the other
making it a reliable choice for improving indoor air quality
10" X 10" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 12 5 8" X 12 5 8"] Adjustable Return 75" width X 15 actual front end outer RG1612AL Compatible with Duct 4" 75" width X 15 + Product Details Size 26"w X 4"h is the size for the duct opening measurement only