Pacific Coast Imports aquarium refrigeration units are top of the line chillers that are designed to keep your aquarium cool on those hot summer days. They can also be used on tanks with heavy lighting, or for cool temperature specific aquariums that require lower temperatures. These units are made with high grade titanium heat exchangers, and are digitally controlled for precise measurements of temperature with only a +/- 2 swing. We offer only the very best at the lowest price.