Steel pipe fittings are used with air, water, oil, natural gas, and steam applications. Choose stainless steel pipe fittings, including pipe plugs, for maximum corrosion resistance. Along with stainless steel and galvanized steel pipe fittings, brass pipe fittings are a long-lasting option that offer superior rust-resistance for both commercial and residential plumbing applications. Brass is particularly beneficial when used on hot water distribution lines as higher water temperatures cause faster rusting than cold water. We stock a wide selection of sizes to meet your needs.