The Sea Line SL-300A 1/4HP Aquarium Chiller is a compact, sleek and easy to install aquarium chiller for small aquariumsFeatures:3,000 btus30 degree cooling up to 100 gallons. 10 degree cooling up to 180 gallons. Note: These temperature pull-down ratings are in ideal situations. We highly recommend purchasing a chiller one size larger than the specifications would lead you to believe is necessary.Does not have a pump. The required flow through the chiller is between 350gph and 700gph1/2" and 5/8" Hose connectionsDimensions:18.7" X 14" X 19"Microcomputer control systemExtra large refrigerating capacityFreon-free R134a refrigerant, which is safe and environmentally friendlyA superior quality condenser manufactured by the American OAK production lineAnti-corrosive, pure titanium for freshwater and saltwater useCompressor protection device system built to shut off the circuit automatically to prevent the motor from burning out when the motor is overheated due to overloadMemory temperature system that makes the chiller refrigerate continuously according to the last temperature settingConstructed of ABS plastic, which prevents rust and corrosionOne year warranty