An assembly of devices intended to be used to pump heated and/or cooled fluid (e.g., water) through externally applied packs for localized hot and/or cold therapy to help treat a variety of adverse conditions resulting from musculoskeletal injury (e.g., pain, swelling, inflammation). It includes one or more hot and/or cold therapy packs (e.g., anatomically specific wraps), and a mains electricity (AC-powered) fluid pump and heating/cooling unit with controls/display; the device is not intended for wrap inflation. It is intended for use in both professional and home settings.