Ranco V12-4220T0-270 1 3/8 Inch X1 1/8 Inch Rev Valve E R22 R410A

The V12-4220T0-270 Ranco 4-way reversing valve is a key component in heat pump systems, which provide both heating and cooling. The valve works by changing the direction of refrigerant flow, allowing the heat pump to function in either heating or cooling mode. It is typically used in unitary, split-system, and window-type heat pumps. These heat pumps use electricity to move heat from one place to another, making them a more energy-efficient alternative to traditional heating and cooling systems.