Inverted Flare 1/4″ x 1/4″ Elbow
2 Stage Regulators
1/4″ Inverted Flare x 1/4″ MNPT Elbow
A union adaptor connects two pipes, but is quite different than a coupling, as it allows future disconnection of the pipes for maintenance,
these unions adaptors are brass made and join 1/4″ MNPT to 1/4″ Female inverted flare connectors right angled.