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Aquariums India - HYDOR External Aquarium Heater ~~~~~~~~~~~~~~~~~~~~~~ The first compact aquarium heater that operates externally, saving interior aquarium space. Installs vertically in the return line of a canister filter or sump,
Amazon.com : Hydor ETH 200 In-Line External Aquarium Heater, 200w, 5/8" hose - Original ETH 201 : Aquarium Heaters : Pet Supplies
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Amazon.com : Hydor ETH 200 In-Line External Aquarium Heater, 200w, 5/8" hose - Original ETH 201 : Aquarium Heaters : Pet Supplies
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