Cooling systems include a first passageway forming member that includes first and second ends and at least one connecting recess that opens into first and second passageways formed by the first passageway forming member. A second passageway forming member includes first and second ends and inlet and outlet ports proximate the first end such that the first end, including an elastomeric seal and the inlet and outlet ports, is sealably insertable in and removable from the at least one connecting recess, where the inlet port opens into the first passageway and the outlet port opens into the second passageway, and where, when the first end is inserted in the at least one connecting recess, the elastomeric seal is sandwiched between and in substantial contact with both the first end and the first passageway forming member.