This FJC refrigerant hose is a must-have for professionals in the HVAC and refrigeration industry. It is 3 ft long, made in the United States, and comes in a bright yellow color for easy identification. The hose is compatible with R-12, R-22, and R-502 refrigerants and has one valve. Its mechanical features make it a reliable choice for refrigeration and air conditioning systems. The hose label says 2500psi and burst 500psi. This hose is good for older AC systems.