Abstract: A filter/separator for a vehicle air conditioning system includes an outer container and an inner container. A first chamber is defined between the outer and inner containers. A second chamber is defined by the inner container. The first chamber is filled with the coolant. An inlet is formed in a wall of the outer container, communicating a condenser with the first chamber. A first tube extends in and through a wall of the inner container with a first end thereof located in the first chamber and a second end thereof communicating with an expansion valve. A filter is provided in the first chamber between the inlet and the first end of the first tube for filtering water and other undesired articles carried by the coolant. A second tube has a first end communicating with an evaporator and a second end in the second chamber.