The Dry Suit Inlet Adaptor is a perfect solution for using a heating vest underneath your dry suit. This adaptor fits onto any Apeks/DUI valve, which means no additional penetrations into the suit. Simply attach the adaptor to the valve and secure the Inflation hose fitting over the top of it. The wiring and connectors (I/O and Fischer) are both waterproof. The connecting cord is long enough to reach your CUDA's power outlet and short enough so that it will not be a hazard on a dive.