Preset Aquarium Heater Submersible Fish Tank Thermostat 250Watt 40-75Gallon Tank | eBay
Api W250 250 Watt Metal/plastic Auto Waterer Birdbath Water Tank Sinking Deicer Heater For Bucket Containers Up To 30 Gallons : Target
Amazon.com: CORISRX Aquarium Heater Set for 75-250 Gallon Fish Tank, 500W Adjustable Water|Turtle Tank Thermometer w/Double LED Temp Display, 500W Water Heater Submersible w/Quartz Tube Plastic Guard : Pet Supplies
Amazon.com: Aquatop 250W Thermo-Quartz Electronic Heater - Fully Submersible for Fish Tanks Up to 85 Gallons, Preset 78F Electric Thermostat, Fresh & Saltwater Use, Aquarium Heaters, TQ-250W : Pet Supplies
Eheim Thermocontrol e Submersible Aquarium Heater 50/75/100/150/200/250/300 Watt | eBay
Amazeheater LLC Amaze 250 Watt 853 BTU Electric High Efficiency Panel Space Heater & Reviews | Wayfair
250W Heater for Cattle Water Drinkers | Miraco Livestock Waterer – Speedrite Electric Fence Chargers / Energizers & Tru-Test Livestock Scales from Valley Farm Supply