Fluval "E" 300-Watt Advanced Electronic Heater, 375 L (100 US Gal) - Safari Pet Center
Aqua One 300W Glass Aquarium Heater
Aquarium Water Heater 50-300W Anti-Explosion for Tropical Fish Tank US | eBay
HiTauing Aquarium Heater, 300W Fish Tank Heater with LED Digital Display & 5 Safety Protection, Submersible Aquarium Heater with 2 Suction Cup and 8.2Ft Cord for 40-75 Gallon Fish Tank. : Amazon.ca: Pet Supplies