Compact aquarium chillers house a powerful, energy-efficient cooling system. Unlike thermoelectric chillers, Arctica chillers rely on revolutionary nano compressor technology to offer reliable water-cooling performance. A state-of-the-art titanium heat exchanger is paired with ozone-friendly refrigerant to ensure reliable temperature drop down. Integrated, analog temperature controller and probe maintains set temperature within Â±1Â°F. Condenser grill is located in front for maximum airflow and convenient maintenance. Barbed 1/2″ connections for quick and convenient installation. Measures 7-3/4″ x 12-1/2″ x 14″ high.Â Two models to choose from, starting at $269! Nano rated for upto 25 gallons, mini rated for 40 gallons.