









🛠️ Upgrade your airflow game with calimaero® – where efficiency meets effortless style!
The calimaero® RKKI Backdraft Shutter is a 100mm inline extractor fan accessory designed to prevent reverse airflow and cold air ingress. Made from durable, UV and weather-resistant plastic, it features self-closing flaps that open automatically with exhaust air and close tightly when airflow stops. Easy to install and compatible with a wide range of HVAC systems, this lightweight, industrial-style shutter enhances ventilation efficiency while backed by over 40 years of brand expertise.





| Manufacturer | calimaero |
| Part Number | RKKI-4 |
| Product Dimensions | 9.5 x 9.5 x 0.71 cm; 20 g |
| Item model number | RKKI 100 |
| Size | 100 mm |
| Colour | White |
| Style | Industrial |
| Finish | Painted |
| Power Source | Electric |
| Voltage | 230 Volts |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Blade length | 100 Millimetres |
| Speed | 1 RPM |
| Switch style | On/Off |
| Certification | DIN EN 1506 |
| Special Features | No |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 20 g |
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