FCS II to FCS1 Fin Box Adapter river-surfing from icy sessions to tropical

from icy sessions to tropical breaks

and easy installation

🧡 Soft Neoprene Protection

cushioned contact point that prevents scratches

FCS II to FCS1 Fin Box Adapter river-surfing from icy sessions to tropicalConvert any FCS II surfboard into a standard FCS1 (Double Tab) setup. The Eisbach Riders FCS II Fin Box Adapter allows you to use traditional FCS1 fins in surfboards equipped with the newer FCS II fin system. Simply insert the adapter into the fin box and lock your FCS1 fins in place using standard fin screws. Perfect for surfers who want to keep using their existing fin quiver, test different fin templates, or replace broken fins without buying a