Safety, Precision and Durability in a New Breakthrough Technology!Patented heating film and special shatter resistant glass make this submersible heater...

Know your aquarium's temperature at a glance.Easy to read, accurate thermometer mounts on outside of your aquarium. And, this...

Two pack of suction cup holders secure 1" diameter heaters, power filter siphons, and undergravel filter uplift tubes to aquarium...

Measure and display the water temperature in your fresh or saltwater aquarium or your room temperature with Little Time or...

This Tronic Aquarium Heater provides accurate thermal control for your tank. Its fast heat technology works constantly to achieve...

This Tronic Aquarium Heater provides accurate thermal control for your tank. Its fast heat technology works constantly to achieve...

Promotes root growth in all aquatic plants Creates natural convection currents through the aquarium bed, preventing stagnation Non-rotting silicon...

Eheim Professional Thermofilters heat water directly as it is being filtered, maintaining a constant temperature. The sensitive electronic thermostat allows...

Features:Patented thermostat with diodeFast heating technologyAutomatic safety shut-offFully immersibleFor salt and fresh waterSuction cups included...

Eheim Professional Thermofilters heat water directly as it is being filtered, maintaining a constant temperature. The sensitive electronic thermostat allows...

Features:Patented thermostat with diodeFast heating technologyAutomatic safety shut-offFully immersibleFor salt and fresh waterSuction cups included...

Eheim Professional Thermofilters heat water directly as it is being filtered, maintaining a constant temperature. The sensitive electronic thermostat allows...

Features:Patented thermostat with diodeFast heating technologyAutomatic safety shut-offFully immersibleFor salt and fresh waterSuction cups included...

Eheim Professional Thermofilters heat water directly as it is being filtered, maintaining a constant temperature. The sensitive electronic thermostat allows...

Promotes root growth in all aquatic plants Creates natural convection currents through the aquarium bed, preventing stagnation Non-rotting silicon...

Fully submersible aquarium heater with a unique ratchet style temperature knob that can't be overwound....

Maintain accurate aquarium temperatures....

Submersible aquarium heaters feature a thin, compact design that's easily hidden, so it won't take away from the beauty of...

Printed circuit board technology to maintain accurate temperatures....

Safe, reliable aquarium heaters at an affordable price....

Double sealed heater is completely waterproof and submersible....

An extremely accurate, high-quality heater....

These submersible aquarium heaters have shatter-resistant quartz tube....

UL listed heaters are safe for freshwater and saltwater aquariums....

A shatter proof heater to keep your aquarium at the right temperature....

Submersible heater holder is used to secure 1" heater tubing to the wall of the aquarium....

Stealth submersible aquarium heaters combine advanced streamlined design with precise water-calibrated accuracy and UL-approved performance assurance....

Frigid fish? Show some warmth by installing the Visi-Therm Automatic Aquarium Heater. This compact heater offers a number of advanced...

Radiant Compact Heater 100 Watts 10" (25 cm) Accurately maintans aquarium temperature For fresh or salt water aquariums Sure-Grip rim...

Radiant Compact Heater 100 Watts 8" Accurately maintans aquarium temperature For fresh or salt water aquariums Sure-Grip rim attachment...

150 Watts 12" (30 cm) Accurately maintans aquarium temperature For fresh or salt water aquariums Sure-Grip rim attachment...

200 Watts 15" (37.5 cm) Accurately maintans aquarium temperature For fresh or salt water aquariums Sure-Grip rim attachment...

Radiant Compact Heater 50 Watts 8" Accurately maintans aquarium temperature For fresh or salt water aquariums Sure-Grip rim attachment...

Radiant Compact Heater 75 Watts 8" Accurately maintans aquarium temperature For fresh or salt water aquariums Sure-Grip rim attachment...

Radiant Heater - Mini Compact 25 Watts Only 6" (15 cm) Ideal for small fresh or salt water aquariums Accurately...

Radiant Heater - Mini Compact 50 Watts Only 6" (15 cm) Ideal for small fresh or salt water aquariums Accurately...

Thermal Compact 100 Watts 9.5" (24 cm) Completely submersible Superior temperature control For fresh or salt water Compact size ideal...

Thermal Compact 150 Watts 11.5" (29 cm) Completely submersible Superior temperature control For fresh or salt water Compact size ideal...

Thermal Compact 50 Watts 9.5" (24 cm) Completely submersible Superior temperature control For fresh or salt water Compact size ideal...

Thermal Compact Mini 25 Watts 6" (15 cm) For reptile, turtle and small water volume aquariums...

Thermal Compact Mini 50 Watts 6" (15 cm) For reptile, turtle and small water volume aquariums...

Thermal Compact Pre-Set 100 Watts 10.5" (25 cm) Completely submersible Easy to read adjustable dial For fresh or salt water...

Thermal Compact Pre-Set 150 Watts 12.5" (30 cm) Completely submersible Easy to read adjustable dial For fresh or salt water...

Thermal Compact Pre-Set 200 Watts 12.5" (30 cm) Completely submersible Easy to read adjustable dial For fresh or salt water...

Thermal Compact Pre-Set 300 Watts 14" (35 cm) Completely submersible Easy to read adjustable dial For fresh or salt water...

Thermal Compact Pre-Set 50 Watts 10.5" (25 cm) Completely submersible Easy to read adjustable dial For fresh or salt water...

Tronic Submersible Electronic Heater 100 Watts 9" Maximum aquarium capacity: 30 U.S. Gallons Provides accurate thermal control Fast heat technology...

Tronic Submersible Electronic Heater 150 Watts 11" Maximum aquarium capacity: 45 U.S. Gallons Provides accurate thermal control Fast heat technology...

Tronic Submersible Electronic Heater 200 Watts 11" Maximum aquarium capacity: 65 U.S. Gallons Provides accurate thermal control Fast heat technology...

Tronic Submersible Electronic Heater 50 Watts 7" Maximum aquarium capacity: 15 U.S. Gallons Provides accurate thermal control Fast heat technology...

The Heater Holder features a clip with a suction cup that is to be used to secure 1n++ heater tubing...