9/16"-18 Male (Connects to a standard regulator hose) with a quick connect on the other side that works with either the locking or non-locking OmniSwivel Seaquest quick release adapters
Details:
Female QD has lock built into sleeve. Once connected, rotate the sleeve counter-clockwise 90deg to engage the lock.
This adapter works with the OmniSwivel QDYF-S adapter whic you can also purchase from us! "Refer to item: Non-Locking or Locking SeaQuest Quick Release High Flow Adapter Set"