Has a weld bead inside, is NPT threaded at both ends, and resists rust and corrosion. - For low-pressure plumbing applications including air, water, oil, natural gas, and steam. - Certified for use in potable water applications. - Threads conform to ANSI B1.20.1 standards. - Material conforms to ASTM A-53 Type E, Grade A standards. - Manufacturing conforms to ASTM A-733 standards. Pipe Connection Type / Threaded on Both Ends Pipe Type / Pipe Nipple Pipe Schedule / 40 Material - Pipe / Galvanized Steel Pipe Weld Type / Continuous Weld Pipe Size - Nominal / 1/2 in Overall Pipe Length / 3 in Pipe Thread Type / MNPT x MNPT Max. Pressure / 150 psi @ 150 Degrees F Inside Dia. (In.) / 0.622 in Outside Dia. (In.) / 0.84 in Wall Thickness (In.) / 0.109 in Metal Detectable / Yes Standards / ASTM A-53 Type F, ASTM A733, Grade A