Description
The Broan-NuTone 634M Steel Roof Cap 6″ Round Ducting helps as an exterior termination point for duct airflow discharge, protecting the ventilation outlet from backflow and external entry. It acts in HVAC systems through a 6-inch round duct connection that channels exhaust air outward while a hooded steel cap guides airflow away from the roof surface. The integrated damper assembly assists in preventing reverse airflow when the system is inactive. Its metal-framed construction maintains structural stability at the roof exit point, supports controlled emissions ventilation, and ensures a uniform air release from connected exhaust systems.
