Teco TK 150 ChillerThis item requires the $70 heavy item shipping fee. FOR SMALL NANO SIZE AQUARIUMS UP TO 60 GALLONS The new TANK chiller line is the next generation of TECO's flagship SeaChill aquarium chiller used by consumers and professionals for over a decade. The TECO TANK is the result of one of TECO's most ambitious and comprehensive redesigns of the SeaChill aquarium chiller to date. New changes include an increase in cooling efficiency and improved usability,