calimaero® Seal Backdraft Shutter 4 Inch Inline Extractor Fan Backdraft Shutter Quiet Rubber Flaps, Fits All DN 100mm Ducting/Made from Recycled Plastic in DE
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Product description
- HIGH-QUALITY MATERIALS The calimaero backdraft shutter does not only prevent the outside cold air from entering back into your home but it also helps our environment because it is made of recycled material from Germany. This back draught can be inserted into all exhaust air pipes regardless of the ducting materials. Its plastic and rubber flaps are robust, weather resistant, and environmentally friendly.
- PRODUCT FUNCTION The 100mm backdraught shutter is pushed completely into the ducting pipe. Ideal for retrofitting bathroom fans and other ventilation systems without a built-in backdraft shutter. The rubber flaps must be aligned so that they open with the exhaust airflow. The outer rubber ring ensures a perfect seal and a secure hold.
- CUSTOMER SERVICE We are experts in ventilation for more than 40 years. If you have any questions or complaints, please contact our customer service directly. Your request will be processed immediately.
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