Since 2001, KOOLJET is designing and building energy efficient, one-piece refrigeration systems, which can be easily installed at the client's location, without the necessity of refrigeration technicians.KOOLJET “PLUG N PLAY” type Refrigeration Systems are factory charged, fully tested and calibrated, prior to shipping. Custom & Mono-Block Designed Systems are Easy to Install & Relocate. No Site Assembly or Plumbing is required. KOOLJET also builds Hydro-Coolers; Wine Chillers; Tunnel Coolers; Medical and Process Industrial Chillers; Ultra Low Temperature Freezers; Blast Freezers, Dehumidifiers, Pumping Stations; etc.