The E-X-P E2 is a compact version of the Original E-X-P Tankless Water Heater Service Valve. It features heavy-duty forged brass ball valves with full-port main flow channels. The uniquely designed lever/wing handle is for easy actuation of the main ball. The color-coded aluminum handles are for easy identification of hot and cold valves. This kit includes a residential grade pressure relief valve 150 psi/500,000 BTU/HR.Replaces 14 components, eliminates 12 leak paths, saves 108 minutes of laborQuicker, consistent quality installationsFewer leak pathsAllows for easy cleaning or flushing of the systemAllows for one-person diagnostic testingAlso for use with wall hung and combi boilers