304/304L Forged Stainless Steel Pipe Fitting, Half Coupling, Class 3000, 1-1/2" NPT Female Half coupling pipe fitting for extending and connecting pipes Female National Pipe Taper (NPT) threads on one end and no threads on the other for connecting different types of pipes Made from stainless steel 304/304L for corrosion resistance Class 3000 for use in high pressure applications Forged for durability