Junction boxes are used to safely split and branch circuits into different directions. They conceal electrical connections from sight, deter tampering, and provide protection from contaminants such as dirt, oil and water. High impact and high tensile strength. PVC is resistant to external corrosion and pitting and will not rust. As a building material PVC offers outstanding fire performance characteristics. Retains original properties after years of exposure to direct sunlight, heat, and extreme weather. Resistant to a wide range of chemicals such as acids, alkalis or salt solutions. Resistant to fungi, bacterial action, rodents and termites, for a long and trouble-free life. Requires solvent cement to join fittings with PVC conduit.