FSK 70/40 (2 pcs.) – Helios – Circular Spigot
For the economical integration of rectangular duct fans in round pipe systems.
The fittings made of galvanized sheet steel are a perfect fit for the flange dimensions of the duct fans, which is why they can be easily attached and screwed to the flange corner points.
The use of the fittings influences the flow and slightly reduces the fan performance.