QDB50
Kwiklok OSHA Quick Connect Brass Fuel Gas/Oxygen Hose Connector
A nice touch is the Vinyl Ester Resin- 4 Gallon Kit with MEKP Catalyst includes a catalyst safety cap.
NEW WESTERN ENTERPRISES QDB50 KWIKLOK HOSE TO HOSE SET
For heavy workloads, an INTEL-based setup is a solid choice.