Polypipe Domus 6900B Wall Outlet With Gravity Flaps 150mm Brown

This wall outlet features gravity flaps and is intended for use with 150mm ducting in ventilation systems. Its brown colour provides a subtle finish that blends with brickwork or exterior facades in residential and commercial settings.

Commonly installed as the external termination point for mechanical ventilation—such as cooker hoods or extractor fans—the unit allows for effective airflow while the gravity flaps help limit unwanted air and debris entering the system when idle.