Reasons to Buy Brass Pipe and Plumbing Fittings No plumber can do without having adequate knowledge about brass fittings and their efficacy while handling piping tasks. While there are numerous types of fittings available for joining two pipes together, most plumbers favor brass that comes with multiple advantages as well. This unique metallic alloy has remained effective and in use for centuries on account of its durability and amazing flexibility. The corrosion-resistant property makes it even more appealing for plumbers who strive to ensure fool-proof piping that is used to carry water for different purposes.