The Helios Fans RSKK 100 is a compact backdraught shutter designed for direct installation on either the inlet or outlet side of a duct system. Suitable for mounting in any orientation, it prevents unwanted reverse airflow and supports efficient air management.
This shutter features a lightweight yet durable plastic casing and flaps, making it corrosion-resistant and easy to install. A high-quality stainless steel return spring ensures reliable closure when airflow ceases or reverses. Rated for use in systems with air temperatures up to 70 °C, the RSKK 100 is ideal for domestic and light commercial ventilation setups requiring simple, automatic airflow control