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Tetra Submersible Heater 50W | Tropic N Reef
Amazon.com: Aquatop 200W Titanium Heater with Controller - Fully Submersible for Fish Tanks Up to 55 Gallons, 68-92 Adjustable Temperature, Durable Water Heater, Aquarium Heater for Turtles & Large Fish, TH-C200 :
Aquatop Aquatop-D1HTNano-50W Nano Aquarium Digital Heater with LED, 50-Watt : Amazon.ca: Pet Supplies