In one embodiment, an apparatus includes a monolithically formed thermal conducting body that includes a passageway that extends from a first end to a second end of the body. At least one of the first end or the second end of the body is configured to couple the body to a tubular member. The body also defines a substantially non-circular outer perimeter, and at least a portion of the passageway of the body defines a substantially circular cross-section. The passageway of the body is configured to receive fluid there through, and the body has a substantially planar outer surface that is configured to be placed in contact with a heat generating component. In some embodiments, the body can be coupled to a plate. In some embodiments, an apparatus can include more than one such thermal conducting body.