HTSPPXT Aquarium Heater, 100W/200W/300W/500W Adjustable Fish Tank Heater with Intelligent Digital LED Controller, Overheating and Out of Water Protection for Freshwater and Saltwater Tanks

AquaMiracle Adjustable 10W Betta Heater Small Aquarium Heater Submersible Fish Tank Heater 5V/2A USB Powered Super Mini Aquarium Heater with Digital Display Thermostat, for up to 1 Gallon Tanks

YukiHalu Aquarium Heater 50/100/200/300/500W with Protective Case, Fish Tank Heater, Temperature Adjustable, External Temperature Controller, LED Display, Used for 10/20/40/75/120 Gallons (100W)

AQUASMITH Aquarium Heater,50w/100w/150w/200w/300w/500w Submersible Fish Tank Heater,External LED Controller, with Over-Temperature Protection and Automatic Power-Off When Leaving Water for.

JBJ 1/4HP Arctica Aquarium Chiller & Installation Kit Bundle (2 Items)

HITOP Mini Submersible Aquarium Heater - 50W Digital Heater for Fish Tank Turtle Tank 5-15 Gallon, Saltwater and Fresh Water with Temperature Controller (50W)

Vatalley Fish Tank Heater for Aquarium: 50W/100W/200W/300W/500W Submersible Turtle Betta Heaters with Accurate Temperature LED Digital Display - Overheating and Off-Water Protection for 20-40 Gallon

Finnex Titanium Aquarium Heater, 500 Watt THD Series Standard, Heater Guard, Made in Taiwan (500W-Standard)

VCRAZE Aquarium Heater 300W Fish Tank Heater with External Thermostat (Dual Digital Display), Turtle Heater for Tanks 40-75 Gallons, Dry-Run/Overheating Protection and Memory Function

fishkeeper 25W/50W/100W/200W/300W Fish Tank Heater for 1-80 Gallon, Adjustable Submersible Aquarium Heater with LED Digital Display and Overheat Protection for Saltwater & Freshwater Tanks