Amazon.com: HITOP Mini Submersible Aquarium Heater - 200W Digital Heater for Fish Tank Turtle Tank 25-50 Gallon,Saltwater and Fresh Water with Temperature Controller : Pet Supplies
Amazon.com: HITOP 25W 50W 100W 200W 300W Adjustable Aquarium Heater, Submersible Fish Tank Heater Thermostat with Suction Cups (100W-grey) : Pet Supplies
Aqueon Adjustable PRO Aquarium Heater Up to 75 Gallons, 200 Watts - Walmart.com
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 :
Amazon.com: Aqueon Adjustable Pro Aquarium Heater, 200W : Pet Supplies
Aqueon Pro 200 Adjustable Aquarium Heater, 200-watt | Beacon Barkery
Eheim Ebo Jager 200-Watt Aquarium Heater HE-EJ19200 @ Fish Tanks Direct