Ø 100mm / 4" Round Wall Flange with Backflow Valve, PVC Connector for Ventilation Pipe

Features:

• Ø 100mm / 3.94 inch Wall Flange with Backflow Valve
• Pipe Connector Made of PVC Plastic can be Installed and used in any Climatic Conditions
• Ensures Safe Air Flow
• Heat resistant from: -15 °C + 60 °C
• All you have to do is Mount the Wall Flange on the 4 Mounting Points - Simple and Uncomplicated