All / Fins / Thruster fins All Sale Boards Fins Centre fins Side fins Twin and Keel fins Thruster fins Quad fins Accessories 4.5" Thruster Fins, brown on caramel on bone Pro Glass with a machined finish. Futures compatible. $99.00 Add To Cart 4.6" Thruster Fins, red Pro Glass with a machined finish. FCSII compatible. Sale Price:$77.75 Original Price:$99.00 sale Add To Cart 4.6" Thruster Fins, smoke Pro Glass with a machined finish. FCSII compatible. Sale Price:$77.75 Original Price:$99.00 sale Add To Cart 4.6" Thruster Fins, green Pro Glass with a machined finish. FCSII compatible. Sale Price:$77.75 Original Price:$99.00 sale Add To Cart 4.6" JF Thruster Fins, ruby Pro Glass with a machined finish. FCSII compatible. Sale Price:$77.75 Original Price:$99.00 sale Add To Cart 4.6" Ultra Lite Thruster Fins, black Xtreme Pro Carbon. FCSII compatible. Sale Price:$102.00 Original Price:$132.00 sale Add To Cart 5.4" Big Boy Thruster Fins, solid black Pro Glass with a machined finish. Available in FCS, FCSII or Futures compatible. Sale Price:$77.75 Original Price:$99.00 sale Select Tab compatibility FCS FCSII Futures Add To Cart 3.5" Stabilizer /third fin, natural Pro Glass with a machined finish. FCS compatible. $53.00 Add To Cart Compatibility kit, make the original FCS fins fit the FCSII plugs. $15.50 Add To Cart 2.9" Stabilizer / third fin, solid black Pro Glass with a machined finish. FCSII compatible. Sale Price:$41.75 Original Price:$51.00 sale Add To Cart 3.1" Stabilizer / third fin, solid black Pro Glass with a machined finish. FCSII compatible. Sale Price:$42.50 Original Price:$52.00 sale Add To Cart 4.6" Stabilizer / third fin, ruby colour Pro Glass. FCSII compatible. $54.00 Add To Cart 3.1" Stabilizer / third fin, natural Pro Glass with a machined finish. Futures compatible. Sale Price:$42.50 Original Price:$52.00 sale Add To Cart 3.5" Classic Stabilizer /third fin, natural Pro Glass. Futures compatible. Sale Price:$43.25 Original Price:$53.00 sale Add To Cart