The product is a range of 304 stainless steel male pipe fittings in various sizes from 1/8″ to 4″. These BSPT male pipe fittings are in the shape of weld nipples and are designed for maximum working pressure of 1.6Mpa. The fittings are corrosion-resistant, flexible, smell-proof, and rust-resistant, making them suitable for use in exterior walls, oil, sewage, water pumps, air conditioning, water tanks, showers, and various other industrial and residential applications. Manufactured in China, these matte finished fittings can withstand up to 120° of water temperature and are suitable for natural gas and refrigeration systems.