- Easy installation and maintenance: includes a tank level indicator to monitor the fluid level, a switchable inlet/outlet, and a floor drain plug design for easy discharge and cleaning. - High quality material and seal: built with durable materials and an O-ring seal to ensure a tight seal, designed for efficient storage and management of coolant. - Versatile use and compatibility: suitable for most vehicles, with capacity options of 1L or 2L, and available in black or silver. - Overflow control and leakage prevention: when radiator coolant pressure exceeds the pressure cap setting, coolant flows into the overflow tank to maintain a closed environment. Use scenarios: - Regular vehicle coolant maintenance in a car or light truck, using the tank level indicator to monitor coolant and the switchable inlet/outlet for easy filling and draining. - Workshop or service bay use for multiple vehicles, with size options (1L or 2L) and color choices (black or silver) to fit different tool setups and aesthetics. - Performance or high-load driving situations where radiator pressure may rise, using the overflow function to redirect excess coolant to the overflow tank and protect the cooling system.