The FCS Fusion Plug – 0° Center is a genuine FCS Fusion fin box designed for surfboard manufacturing and professional surfboard repairs. Featuring a built-in 0-degree cant, this plug is intended for the center fin position on thruster surfboards and other center fin applications requiring a vertical fin orientation. The Fusion system is installed before lamination, allowing fiberglass to laminate directly over the flange for exceptional strength and long-term durability. Its integrated high-density foam base creates a strong bond with the surfboard blank while helping resist movement under heavy loads. Compatible with original dual-tab FCS fins, the Fusion system remains a trusted choice among professional surfboard builders for both new board construction and surfboard repairs. Features Genuine FCS Fusion fin plug Built-in 0° cant for center fin installation Designed for center fin positions Pre-lamination installation system High-strength composite construction High-density foam foundation for added durability Compatible with original dual-tab FCS fins Ideal for surfboard manufacturing and professional repairs