The RHEEM Temperature & Pressure (T&P) Overflow Tube is an essential water tank part that connects to the Temperature & Pressure Relief Valve (T&P Valve). It directs any water released due to pressure or temperature increases away from the water heater and into a drain, ensuring the safety and efficiency of your water heater system. This RHEEM Temperature & Pressure (T&P) Overflow Tube is a crucial component in maintaining proper water tank operation.