Galvanized
pipe fittings are used for countless outdoor and industrial applications
because of the material's ability to protect against corrosion and salt.
Galvanized pipe and fittings may be used in most applications with the
exception of underground lines. While they work best with cold water lines,
they may be used with hot water as well. The main advantage of using galvanized
fittings is their superior rust resistance when compared to black and copper
fittings. Galvanized pipe fittings should not be used with gas applications.