Innovative push to connect design on outlet allows for quick and easy installation on copper and CPVC drain lines. Incorporates an inert thermal element coating that provides effective isolation from mineral deposits (liming) and galvanic corrosion. Comes with standard factory settings of 150 psi for pressure relief and 210 deg F (99 deg C) for temperature relief. Completely automatic and reseats after temperature or pressure relief. Ideal for working in tight spaces. Faster install time and ease of use reduces installation errors.