2 in. x 6 in. 425 Up Flow Dryer Box

The 425 is the flagship model having been designed for the most common new construction dryer exhaust configuration. While there are a few exceptions, it is primarily used for venting upward in 2 X 6 walls. Where wall depth is restricted, it can be installed in a 2 X 4 wall with a 1" furring strip. The only time the 425 should be rotated is to support pedestal or stacked units for downward venting. This model was designed to allow room for other mechanical components in the cell of the wall. It is narrow enough to share plumbing or electrical runs. - Models 480, 425, 4D, 350 and 3D are UL Classified Deep Drawn Manufacturing in the USA Extension Rim Extends 7/8" from Nailing Flange Eight 1/4" Mounting Holes (4 on Each Side) Tapered Sides Allow Nesting of Multiple Boxes Surface is Easy to Paint (No Oil Residue) Instruction Sheet is Attached to Rear Panel New Construction Models Include a Gas Port Knock-out - Eliminate One Elbow; Gain 6' of Allowable Duct Run; Reduce Call Backs - No trim-ring piece is needed; Elbow eliminator…gain 5 foot of duct run; Surface is paintable, no masking needed; Convenient Duct Support Tab