[HIGH SAFETY PERFORMANCE] Ensure your electric water heater does not explode with the pressure relief device installed in the valve body [PREVENT BACKFLOW] Stop hot water from flowing back to the pipeline and avoid energy loss with the safety check valve bottom inlet installation [DURABLE MATERIAL] Made of selected brass casting and high temperature forging for long-term use [RELIABLE CHOICE] Safe and reliable option for household electric safety valve replacement [PERFECT FIT] Great workmanship makes it a perfect replacement for old or damaged valves, Manufacturer: Jelquix