This is a BRAND NEW SF Tech Drysuit heater valve bulkhead. This will replace your regular drysuit inflator and combine both the inflator mechanism (push on the shark button to inflate) and your ability to plug into internal heating undegarments and an external battery source. (I have one of these available for sale also) If needed I can help you with sourcing an extra connector if you need to swap out the one on your current undergarments... they are cheap and easy to swap.
