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Amazon.com: Hitop 50W/100W/300W Adjustable Aquarium Heater, Submersible Glass Water Heater for 5 – 70 Gallon Fish Tank : Pet Supplies
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50W/100W/300W Adjustable Aquarium Heater, Submersible Glass Water Heater for 5 – 70 Gallon Fish Tank - Walmart.com
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Amazon.com: Aquatop 50W Aquarium Submersible Glass Heater – Fully Submersible For Fish Tanks Up To 13 Gallons, 68-93F Adjustable Temperature Range, Fresh & Saltwater Use, Aquarium Heaters, GH-50 : Pet Supplies
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