Thick-walled Grainger Approved coupling offers you a simple, economical installation and is ideal for use with water and oil in chemical, petrochemical, pulp, paper, shipbuilding, waste incineration, and semiconductor industry applications. Pipe Fitting Material / Galvanized Forged Steel Pipe Size - Pipe Fitting / 1 in Fitting Connection Type / FNPT Standards / ANSI B1.20.1, ASME B16.11 and SA105, and ASTM A105 Max. Pressure / 3000 psi @ 72 Degrees F