This Vevor pipe fittings set includes 50 brass straight connectors designed for 3/4" PEX tube applications. Built from lead-free brass, the fittings are made to resist corrosion and handle high temperatures for dependable long-term use. They are suitable for plumbing, hydronic heating, water distribution, and RV piping systems. The set is designed for commercial and residential applications with a rated working pressure of up to 100 psi. Easy installation and broad compatibility make it a practical choice for repair or new piping projects.