The 1 piece ball valve, light model is a 1-piece ball valve. That is mostly used for industrial and agricultural applications.
This reduced flow ball valve is made from stainless steel 316 which makes it corrosion resistant. This makes it a suitable product for a wide variety of water related projects. The ball valve has a 40 bar working pressure, and is available in a wide variety of sizes.
Profec is a professional brand, mostly used for different water related projects.