Round Air Duct Check Valve for Exhaust Ventilation

Improve one-way airflow in your ventilation setup with this air duct check valve designed for round exhaust pipes and fan hoses. Its internal flap opens with outgoing air and closes when airflow stops to help reduce reverse drafts. The backdraft damper valve is made from plastic and works with compatible kitchen, bathroom, and exhaust-fan ducting. Comparable versions are offered in multiple round duct sizes, including 80mm, 100mm, 110mm, 150mm, and 200mm. Lazada Philippines

Key Features

• round duct check valve supports one-way ventilation airflow.
• Helps reduce backdraft through exhaust ducts.
• Lightweight plastic construction for easy installation.
• Suitable for kitchen exhaust fans, bathroom vents, and ventilation hoses. Lazada Philippines

Why Choose Our Round Air Duct Check Valve

This exhaust fan backdraft damper provides a simple mechanical way to help control reverse airflow without motors or electrical components.

Perfect For

Kitchen exhaust systems, bathroom fans, range hoods, round ventilation pipes, flexible duct hoses, utility rooms, and home ventilation projects.

How to Use

Select the size that matches your round duct, install the valve in the correct airflow direction, and secure the connection firmly to minimize air leakage.

Improve Your Ventilation Setup

Add this practical check valve to compatible ducting for cleaner, more controlled one-way airflow.