The Vevor 1/2" brass pipe fittings set is designed for PEX and PP plastic pipe connections in plumbing, heating, shower, and water distribution applications. Made from lead-free solid brass, these fittings are built for corrosion resistance, high-temperature performance, and long service life. The clamp-style female threaded connectors are suitable for both commercial and residential use. This 20-piece set is a practical solution for creating secure pipe-to-pipe or pipe-to-fitting connections.