F 500 – Adapter for square shutter for transition to round – Helios
This can be used for attaching shutters in series VK, RVK, EVK and RAG directly to round ducts or fan connectors (series HQ/HW).
The four holes in the corners correspond to the attachment points on the shutters. The round connector can be placed on the fan casing and attached using self-tapping screws.
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