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Amazon.com : Hitop 500W Digital Aquarium Heater, Submersible Large Fish Tank Heater with Temperature Display and External Controller for Fish Tank up to 150Gallon : Pet Supplies
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Corisrx Submersible Aquarium Heater Set - 55-100 Gallon Betta Fish Tank Temperature Controller, Turtle Tank Thermometer, Freshwater Saltwater Large Tank Thermostat (700W (for 124 to 140 Gallon)) - Walmart.com
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Amazon.com : Hitop 500W Digital Aquarium Heater, Submersible Large Fish Tank Heater with Temperature Display and External Controller for Fish Tank up to 150Gallon : Pet Supplies
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Amazon.com : HITOP 600W Titanium Aquarium Heater - Digital Fish Heater with LED Temp Display and External Controller, for Large Fish Tank 75~180Gallon : Pet Supplies
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