Straight Register Boot - 12" X 4" X 7" Round Drop Ceilings / Steel Insulation – A thick blanket 4 X 12 Is CRFG2028 Width_14in

Insulation – A thick blanket of fiberglass insulation provides you with an R-Value of 6

actual front end outer dimensions are approximately 14 5/8" width X 28 5/8" height

actual front end outer dimensions are approximately 33

+ Product Details Size - 36"w X 20"h is the size for the duct opening measurement only

This 12" X 10" end cap is constructed with 26-gauge galvanized steel

Straight Register Boot 12" X 4" X 7" Round Drop Ceilings Steel Insulation – A thick blanket 4 X 12 Is CRFG2028 Width_14in Insulation – A thick blanket of fiberglass insulation provides you with an R Value of 6 actual front end outer dimensions are approximately 14 5 8" width X 28 5 8" height