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Aquatop 300 Watt Titanium Aquarium Heater with Digital Controller for Fish Tanks up to 100 Gallons, TH-C300 - Walmart.com
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VIVOSUN Submersible Aquarium Heater 300w Titanium Fish Tank Heaters With Intelligent Led Temperature Display And External Temperature Controller & Reviews | Wayfair
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Source hygger 60-180 Gallon Aquarium Heater with Digital Temp Controller Shatterproof Titanium Tube 500W 800W Submersible for Fish Tank on m.alibaba.com
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Hygger 500W 300W Digital Quartz Aquarium Heater, Fast Heating Submersible Thermostat for Fish Tank 30-120 Gallon, Temp Controller (500W (for 60-120 Gallon)) - Walmart.com
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Helio 100 Watt PTC Smart Heater (10-25 gallons) w/Controller - Innovative Marine - SaltwaterAquarium.com
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