Nibco reducing adapters are designed to provide a permanent, leakproof connection, in plumbing assemblies, that resists scaling and corrosion. These adapters feature bodies made of cast bronze / wrought copper / low lead cast bronze to withstand temperatures and pressures up to 400 degrees F and 912 psi, respectively. Choose from a wide range of these reducing adapters available in pipe sizes ranging from 1/4 to 2 inches on Raptor Supplies.