The ASHCROFT General Service Gauge 60-1010-A-02L-100 PSI is a high-quality gauge designed for use in HVAC and refrigeration systems. Made by the reputable brand ASHCROFT in the United States, this gauge is specifically designed to measure pressure up to 100 psi. It is a reliable tool for professionals in the HVAC industry to accurately monitor and adjust system pressure, ensuring optimal performance and efficiency.