Gator Gill now has an alternative to using 3/8 named brand female plastic thread quick connects aka QRS. Our aluminum quick connects have air stops to prevent air loss during connecting and disconnecting other divers.  We have integrated a 20 micron in-line filter to protect each diver below from harmful air pollutants while using gas powered surface air diving systems.  This is simple to install on any 3/8 npt female threaded air hose ends. Each connector has a stainless steel adapter to properly fit the 3/8 female air hose fitting. 

How to install

Remove old plastic QRS fittings from your 3/8 dive line

install one end with the Gator Gill female quick connect (comes with safety clip)

Install the other hose end with the Gator Gill male plug