Broan broan-Broan_427 427 Transition (thin wall) 4-1/2" x 18-1/2" to 10" Round

Broan Nutone 4-1/2" x 18-1/2" to 10" round

Length: 1|Width: 1.66666|Height: 0.66666

The Broan Nutone 4-1/2" x 18-1/2" to 10" round transition duct adapter is designed to connect two 4-1/2" diameter round transition duct sections together without using any tools. The tapered design of the adapter makes it possible to connect the two transition sections without sacrificing air flow. This round transition duct adapter comes with a convenient removable dust cap to protect and conceal the end of the duct.

The Broan-Nutone 427 transition is an adapter that allows the 4-1/2" x 18-1/2" to 10" round duct to be connected to a flat surface.

The Nutone 4-1/2" x 18-1/2" to 10" round transition duct comes with a two piece design making it easy to add a constant pressure fan to any vertical or sloped ceiling.

Low Profile 4-1/2" x 18-1/2" to 10" round duct transition. 4 in. x 18 in. to 10 in. round with single return

The Transition round duct with thin wall is a ducting-only solution for ventilation projects. It has unrestricted air flow and can be formed to fit most of your needs, including unique and unusual angles. With a 4-1/2" x 18-1/2" to 10" round design, this ducting will provide the ventilation you need for your project.

A complete line of round to rectangular transition ducting for hard-to-duct rooms or for areas where ducts are not an option. 6" Round Transition ducting assemblies are available with 4", 5", 6", 7", 8" and 10" Round Jointers. In addition, Transition duct with 4-1/2" x 18-1/2" to 10" Rectangular jointers have a 30 degree offset angle that enables a smoother bend and transition between round and rectangular diameter duct.

The Broan 427 round duct transition provides a smooth transition between straight wall 4-1/2" round duct and the 10" round duct.