How do I install my inflatable fin? ISLE Customer Support November 19, 2018 20:00 Updated Follow For a complete walk through on fin installation please refer to the video below. For more information on how to install your fin, visit our blog post here. Related articles How do I tighten by iSUP Valve? Do you offer board exchanges? What is the warranty on paddles? Do you charge sales tax? How long does it take to inflate? Comments 0 comments Please sign in to leave a comment.