Brass Male Union, Press X MPT Press Joining(https://www.fadavalve.com/product/press-fit-brass-unions/fada-lead-free-press-fittings-brass-male-union-press-x-mpt-press-joining.html) Features • Lead Free Brass • Press-to-Connect • No Flame, Solder or Flux • Can be installed underground • NSF/ANSI 61 and NSF/ANSI 372 Approved