Replacement fins for FCS II Reactor PC Fins.
Overview
Replacement fins for FCS II Reactor PC Fins.
How to identify your missing fin
Turn your board upside down, and stand at the tail. Diagram below:

Explore the FCS Fin Comparison Tool - an easy way to compare up to two fin templates side by side. Get a clear view of the differences and make a more informed choice for your next setup.
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