$28.99 VIVOSUN Aquarium Heater 50W/100W/200W/300W/400W/500W Submersible Titanium Fish Tank Heaters with Intelligent LED Temperature Display and External Temperature Controller
$18.99 FREESEA 50W Mini Aquarium Heater Fish Tank Submersible Heater with LED Temperature Display
$49.99 SZELAM 500W Aquarium Heater Submersible Fish Tank Heaters with Intelligent Temperature Probe and LED Display External Temperature Controller,for Fish Tank 79-120 Gallons
$19.99 YukiHalu Small Submersible Aquarium Heater, Mini Fish Tank Heater 25W 50W 100W with Built-in Thermometer, External Temperature Controller, LED Display, Used for 5/10/20 Gallons (25 Watts)
$79.99 hygger 60-120 Gallon Aquarium Heater with Digital Temp Controller Shatterproof Titanium Tube 500W Submersible Fish Tank Heater Saltwater Freshwater
$39.99 HiTauing Aquarium Heater, Upgraded 300W/500W Fish Tank Heater with Intelligent Leaving Water Automatically Stop Heating and Advanced Temperature Control System, Suitable for Saltwater and Freshwater
$25.19 FREESEA Aquarium Fish Tank Heater: 200 Watt Submersible Betta Heater with Adjustable Temperature Display for Aquatic Fish Tank | Saltwater | Freshwater
$4.99 8 Pack LR44 AG13 A76 Battery - [Ultra Power] Premium Alkaline 1.5 Volt Non Rechargeable Round Button Cell Batteries for Watches Clocks Remotes Games Controllers Toys & Electronic Devices (8 Pack)
$20.99 Soyon Aquarium Heater 500W, Fish Tank Heater with Adjustable Temperature 80 Gallon-100 Gallon Submersible Water Heater (500W with Extra Thermometer)
$18.58 ($18.58 / Count) SZELAM Aquarium Heater, 300W Fish Tank Heater with External Controller Dual LED Temp Display for Saltwater and Freshwater Submersible Fish Heater for Betta Fish Tank 5-26 Gallon
$59.99 Finnex HMH 300 Watt Digital Titanium Aquarium Heater, Black (HMH-300S)
$76.99 Aquarium Heater 500W/800W/1000W/1200W, Double Heating Tubes, Fast Heating and Power Saving, External Digital Temp Controller, Used for 50-160 Gallon Fresh/Salt Water Fish Tanks(1200W)
$14.01 Penn-Plax Aquarium Heater Fully Submersible Within 1 Degree of Accuracy 150 Watt Heats Up to 30 Gallon Tank