In this episode of Snap-on Tool Tips we meet the RADKITULTRA cooling refill and retention kit. With two separate ports for refill and retention just millimeters apart, there is no need for two tools like many competitor’s products require. It’s the perfect tool to use onyour next radiator, heater-core, thermostat, temperature sensor and radiator hose replacement, with no draining or loss of expensive coolant required.