Even tidier sized, these drip-free compression fittings connect to 3/16" Teflon nozzle connection hose and work with all popular short format water/meth nozzles.
Or, use it to expand to another section with male threads. Here, the 1/4" variant is added to a 3-port Banjo Manifold Section.
Assembly is as easy as it looks. Pass the tubing through the nut and then force it over the barb. Next, tighten the nut on top of the bulged line with hard finger torque. Secure with weak thread locking fluid, if you please.
(This part is also available in a 1/4" compression equivalent, as seen with black line examples above.)