The 4 x 3 Welded Stainless Steel Nipple 304 is a threaded pipe fitting used to connect two female-threaded pipes or fittings while extending the connection. Precision machined threads ensure tight, leak-proof connections with compatible fittings. High durability & corrosion resistance ideal for industrial and commercial applications. Made from 304 stainless steel, it is welded for added strength and provides excellent corrosion resistance. This nipple is commonly used in water, oil, gas, steam, and chemical applications where durability and resistance to rust and oxidation are required.