You have dived your One Wing and Harness for years and absolutely love it. You have it configured just how you like and you are undoubtedly comfortable when diving it. Therefore, when you decide to take the leap and start diving a twinset, you would love to do it in the BCD you know and love.
This Butterfly Bolt kit enable you to mount doubles on your One Harness or on your Poseidon Backplate and harness. This kit enables your BCD to advance as your diving does the same.
- Constructed to fit all twin cylinder