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Hitop 50W 100W 300W Submersible Adjustable Aquarium Heater, for 5 - 50 Gallon Fish Tank (50W for 5~20gallon) : Amazon.ca: Pet Supplies
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HITOP 50W 100W Mini Adjustable Aquarium Heater: Digital Fish Tank Heater with Protective Cover and Controller for 5-30Gallon 100W(10-30Gal)
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