OMTECH 9L Industrial Water Chiller 2.6gpm Water Cooling System CW 3000 Water Cooler for 40W K40 CO2 Laser Engraving & Cutting Machines, Radiates 50W Shoe Care Kits fruits and other food NUÜR fruits and other food It is also washable & non Toxic SATISFACTION GUARANTEED: OMTech's usual strong warranty and friendly 24 7 customer service let you order with confidence that this product will meet all your cooling needs for your small to medium sized engraving tool ENERGY EFFICIENT COOLING: OMTech's CW 3000 water chiller radiates heat away rather than using refrigeration to keep your k40 laser engraver nice and cool at a fraction of the usual energy expense