Vent Systems 100 mm / 4" Inch Air Duct Connector Flange Plastic Ventilation Pipe with Valve Ducting for Round Flexible or Straight Pipes, System HVAC

MALE FIT CONNECTOR FOR 100 MM / 4 INCH DUCTING – Designed with 99 mm / 3.90 inch diameter for all standard 100 mm / 4 inch round ventilation pipes and HVAC ducts. Provides a precise and secure fit for reliable airflow. STRONG PLASTIC BUILD – Made from durable, UV-resistant plastic for long-lasting use. Performs reliably in heat, cold, and humid environments without cracking or warping. BUILT-IN SHUTTER FUNCTION – Integrated gravity flap prevents unwanted airflow, odours, and insects while maintaining smooth ventilation performance indoors or outdoors. QUICK DIY INSTALLATION – Pre-drilled holes ensure easy wall or ceiling mounting. Fits securely with just four screws. No professional tools or skills required. (SCREWS AND CLAMPS NOT INCLUDED) IDEAL FOR MULTIPLE VENTILATION USES – Perfect for bathrooms, kitchens, extractor fans, and air conditioning vents. Improves airflow and energy efficiency throughout your home., Weight: 0.1763698096 pounds, Manufacturer: Vent Systems