4" x 8" x 6" Register Boot/Duct Transition

Use this convenient product to create a ductwork transition to the Metaline register or grille or to extend the collar of the device.

The 20408060 is for rough openings 4” x 8.”
The depth is 6”.

• Ships flat; fold to assemble
• Small tabs secure closure; large tabs secure to ductwork
• Construction: Steel
• Color: Unpainted
• Origin: Made in the U.S.A.
• Carton quantity: 48