Booster Unit 2 : A portable water tank. hose reel, and pump mounted on a light truck or trailer and used for small fires and wildland fire control. See also: Booster, Booster Line, Booster Pump Booster Reel, and Booster Tank
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}