Use this convenient product to create a ductwork transition to the Metaline register or grille or to extend the collar of the device.
The 20410060 is for rough openings 4” x 10”. 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