Removes and replaces temperature/pressure valves safely and quickly. Extra length allows your wrench to clear the water heater housing helping to prevent accidental injuries. Fits most water heaters. Accepts 7/8" wrench. Fits most water heaters Remove and replace temperature and pressure valves safely and quickly Extra length allows your wrench to clear the water heater housing Fits 7/8" wrench Made of heavy-duty zinc plated carbon steel