316/316L Forged Stainless Steel Pipe Fitting, Reducing Coupling, Class 3000, 1" NPT Female X 1/2" Female Reducing coupling pipe fitting for extending and connecting pipes of different sizes Female National Pipe Taper (NPT) threads on both ends for connecting to male ends Made from stainless steel 316/316L for corrosion resistance Class 3000 for use in high pressure applications Forged for durability