FCS II Al Merrick PC Large Tri-Quad Fin Set

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Al Merrick's 'AM' shaper fin. Raked side fins produce exceptional speed and drive while the smaller center fin offers quick release through turns. This template is designed for radical, progressive surfing. Ideal for hollow steep waves and punchy beach breaks.

These fins are designed to fit the FCS II Fin System and performance boards with deep concaves and moderate-to-extreme rocker.


Performance Core (PC) fins are made using a multi-layered resin transfer molding process. The flex pattern in PC fins extends progressively from the base through to the tip, helping the surfer to maintain drive and hold through a turn. This versatile fin material is light and can be used in a variety of different conditions.

Tech Specs


  • Base: 4.61 in, 117mm
  • Depth: 4.7 in, 119mm
  • Area: 15.63 sq in, 10083 sq mm
  • Sweep: 36.3°
  • Foil: Flat


  • Base: 3.83 in, 97mm
  • Depth: 3.99 in, 101mm
  • Area: 11.08 sq in, 7150 sq mm
  • Sweep: 32.4°
  • Foil: 80/20


  • Base: 4.34 in, 110mm
  • Depth: 4.41 in, 112mm
  • Area: 13.72 sq in, 8852 sq mm
  • Sweep: 35°
  • Foil: Flat


  • Size: Large
  • Fins in set: 5
  • Material: Performance Core


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