Johnson F5 Long MC 97 Raw Water Impeller Hero Fin Boxes: 3 FOC II

Fin Boxes: 3 FOC II (FCS II Compatible)

Built with an ultra-dense PVC foam core and a full carbon layup

Most surf and foil boards use foam under 10 lb density

Floating Design – Keeps rope and handle on the surface for quick retrieval and reduced tangles

Fast cross-course acceleration with minimal effort

Johnson F5 Long MC 97 Raw Water Impeller Hero Fin Boxes: 3 FOC IIThe F5 Long MC 97 Raw Water Impeller is a replacement flexible impeller designed for marine raw water pump systems requiring the longer F5 impeller profile. It plays a critical role in circulating cooling water through the engine to maintain proper operating temperatures. Manufactured from MC97 marine grade material, this long profile impeller provides reliable flexibility, durability, and consistent water flow under continuous operation. It is