Using solid brass valve core,durable and not easy to rust There is a filter screen at the connection of cold and hot water to protect the water from other impurities Easy to install and suitable for most water heaters Easy to control the amount of hot and cold water,adjust the water temperature as needed Built-in temperature control safety device,no cold water will automatically turn off the hot water to prevent burns, Weight: 0.661386786 pounds, Manufacturer: Zambuph