1/8" Tube Fittings | McMaster-Carr
https://www.mcmaster.com/tube-fittings/for-tube-od~1-8/
Universal-Thread Nickel-Plated BrassPush-to-Connect Tube Fittings for Air and Water. Made of nickel-plated brass, these tube fittings resist corrosion better than plain brass fittings. The male threaded ends connect to NPT, NPTF, BSPP, BSPT, and other universal threads, so you don’t have to bother matching exact thread types.
DA: 61 PA: 67 MOZ Rank: 48