McMaster 4452K466 316 Stainless Steel Threaded Pipe Fitting, Medium-Pressure, Straight Union Connector, 1 NPT Female

A step up in strength from our low-pressure pipe fittings, these handle up to 1,000 psi. They’re made of stainless steel for excellent corrosion resistance.

Union Fitting — Union fittings separate into three pieces so you can access your line without unthreading pipe connections.

316 Stainless Steel—Fittings are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel fittings, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.

ANSI/MSS SP-114—Fittings that meet ANSI/MSS SP-114 adhere to high-quality standards for heat treating, material thickness, and marking. These fittings adhere to high-quality standards for heat treating, material thickness, and marking.