JBJ 1/4HP Arctica Aquarium Chiller (1-JB03020) & Installation Kit (1-JB20954) Package Quieter than similar sized aquarium chillers 2-Year warranty 3000 BTUs/6 amps/115V Single stage controller Does not have a pump. The required flow through the chiller is between 420 gph and 1920 gph. 10 degree cooling up to 260 gallons. 20 degree cooling up to 130 gallons. 30 degree cooling up to 90 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. 1/2", 3/4" or 5/8" Hose Barb Connections Titanium Heat Exchanger Anti-freezing system will not allow the heat exchanger to freeze Contains safe Ozone Friendly Refrigerant (R134-A) Integrated Thermostat – Simple keypad programmable display with constant temperature readout accurate to +/- 1 F. The controller can be set as low as 32F