100mm / 4 Inch Duct \u00D8 4\"", White Connector With Flange and Backdraft Damper\nProduct Details\n--Straight Pipe Connector for use with the 100mm / 4 Inch Round Ventilation Systems | Wall Flange for Wall or Ceiling Mounting\n--Manufactured from White PVC Plastic, Providing Excellent Resistance to Corrosion | Backdraft Damper Stops Smells and Prevent Cold Air Coming through Your Extract Fan or Ducting\n--Features Push-fit Connections for Quick and Secure Assembly without the Need for Specialized Tools or Adhesives\n--Offers a Tight and Reliable Seal, Minimizing Air Leakage and Maximizing Ventilation System Efficiency\n--Ideal for HVAC, Heating, Cooling, Kitchen and Bathroom Applications\n\nPlastic ventilation ducts and connections from EUROPLAST for inflow and outflow ventilation of rooms. The system is quickly, easily and cleanly assembled without sealant and additional fixing. The products are durable and light in weight, which reduces labor and operating costs.