Thermostats bearing the High Flow logo are Tridon High Flow thermostats. Tridon’s range of High Flow thermostats are designed to improve cooling system performance. The High Flow thermostat has a larger valve allowing up to 50% more coolant flow, eliminating the need to use a cooler temperature thermostat.
This thermostat alloys the radiator to cool long enough the thermos don't cut in constantly. Running cooler and economical without drawing constant voltage from a poor charging Gilmer Drive.