This Rheem Thermal Expansion Valve (TXV) is specifically designed for R410A refrigerant systems. The valve has a capacity of 3 tons, making it suitable for larger air conditioning or heat pump systems. It features a 3/8" inlet, 3/8"outlet, and bi-flow metering. The TXV's primary function is to control the amount of refrigerant that enters the evaporator coil, thereby maintaining optimal operating conditions and enhancing the overall efficiency of the HVAC system. This valve has a 0% bleed capacity, 30" element capillary tube length, 1.7" equalizer tube length, and 1/4" sweat ID external equalizer connection.