| Longboard and SUP Box Adaptor |
 The FCS Longboard and SUP Box Adapter allows you to change from a traditional longboard and SUP fins to a FCS thruster set up in seconds, perfect for loosening up your longboard or SUP. The adapter is adjustable for deeper longboard boxes. SKU#: 10110 Longboard and SUP Box Adaptor Features: Price: 17.95 |