Repa Market 220 x 90 mm Backdraft Damper White Rectangular Flat Ducting Connector with One-Way Flap, Plastic Ventilation Duct Non-Return Valve for Pipe, Extractor Fan, HVAC, Kitchen & Bathroom

220 x 90 DUCTING COMPATIBILITY: Designed for compatible 220 x 90 mm rectangular flat ducting systems. The connector joins matching ventilation duct sections while maintaining a compact, low-profile air channel. Check the dimensions of your existing duct before purchase to ensure the correct fit. INTEGRATED BACKDRAFT DAMPER: Built-in one-way flap allows airflow to pass in the intended direction while helping reduce reverse airflow when the ventilation system is switched off. A practical solution for extractor fan ducting, HVAC and other exhaust ventilation systems where unwanted backflow needs to be limited. DURABLE WHITE PLASTIC: Made from lightweight, durable plastic conduit for convenient handling and installation. Suitable for operating temperatures from -15°C to +60°C, making the rectangular duct connector suitable for normal heating, cooling and ventilation applications. QUICK & SIMPLE DUCT INSTALLATION: Designed to integrate easily with compatible rectangular ducting components for straightforward DIY or professional installation. Insert the connector between matching 220 x 90 mm flat duct sections and ensure all joints are correctly seated for a secure ventilation run. FOR EXTRACTOR, HVAC & AIR CONDITIONING SYSTEMS: Suitable for kitchen and bathroom extractor fan ducting, flat air conditioning hose adapter, air conditioning ducting, heating, cooling, air conditioning and general ventilation systems. The flat rectangular profile is particularly useful where installation space is limited and conventional round ducting would take up too much room.