An Aquarium Chiller can be a vital piece of equipment if your tank has temperature fluctuations due to excess heat. Temperature swings can be harmful to many reef tank members such as corals, clams, inverts, and fish. At AquariumSumps.com we carry 2 brands of chillers - AquaEuro USA Chillers and Your Choice Aquatics Chillers have become names that are synonymous with performance and reliability. Every product we sell has gone through extensive testing to ensure it will offer you worry-free use even under the corrosive conditions of a saltwater aquarium. You can be sure your reef tank will stay cool even on the hottest days. All Chillers we carry are a great value, built to last, and backed by exceptional customer service. If you have any questions please email us at firstname.lastname@example.org.