Boost Fin Double Adapter
Install two Boost Fins on your board with the Double Adapter. Get double the thrust to ride farther, carry more gear, and power through headwinds and currents.
If you have difficulty selecting the correct adapter for your board, simply send a photo of your regular fin to info@boostsurfing.com for assistance.
Boost Fin Double Adapter
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Double the Power, Double the Adventure
Works with most SUP boards: Fits Slide-in (SUP) and US Longboard fin boxes.
Easy setup – install in minutes, no extra tools needed!
Boost Fin Original Special Duo Pack
Get 2 BoostFins at the bundle price — just $470 per unit.
Maximum Transparency
Worldwide Shipping
Fast & Secure delivery to over 100 countries
Secure Payment
Your payment is encrypted and 100% protected
30-Day Money-Back
Return it within 30 days for a full refund
1-Year Warranty
Guaranteed quality. Covers all manufacturing defects with free replacement