Black iron pipe construction for use with gas. Protects against destructive effect of galvanic and stray current corrosion; for residential, commercial and industrial applications; supplied with GA gaskets suitable for water, air, oil, natural gas, gasoline, propane, kerosene, mineral oil and alkalies; rated to 210��F at 250 psi conforming to ANSI B16.39. Pipe threads are in accordance with ANSI B2.1.