The Hydor Aquarium Heater is a submersible heater made with the exclusive PTC (Positive Thermal Coefficient) technology. This Hydor aquarium heater provides no thermal shock, is submersible, and engineered shatterproof glass designed to resist breakage in most normal aquarium situations.
Ideal for Freshwater or Saltwater Aquariums
Heater can be positioned vertical or horizontal
The Hydor heater cord is approximately 6 feet long
The Hydor Aquarium Heater has all the necessary features for safe and precise temperature maintenance of water in your tank. The exclusive technology and the high quality of the components guarantee a long lasting product.
Hydor ETH External Thermal Heater - In Line Heater
Hydor ETH External Thermal Heater In-Line Aquarium Heater suitable for all canister filters with 5/8" flexible hosing. No danger of damage if unit is run dry for short period as the ETH will switch itself off before overheating.
Hydor ETH - External Thermal Heater fits in line with your filter tubing
Reliable, Simple to Use, Extremeley Accurate
Suitable for Freshwater and Saltwater aquariums
Ideal for tropical fish breeding situations. Temperature control is adjustable between 66-90 deg F. Includes 2 Year Warranty from date of purchase.
Heats with high efficiency and designed to avoid temperature variations caused by poor water circulation. The ETH external In-Line heater uses the advanced PTC system, which is a special polymer sheet, silk-screened with heating ink (like your car's windshield defroster) instead of metal coils. This state-of-the-art system allows the unit to be left running without water for a short time with no damage. For indoor, in-line use only, the ETH external heater has an adjustable heating control, and a hanging hook for easy placement outside your aquarium. Requires tubing.
The Hydor slim heater is a submersible aquarium heater for micro tanks and mini aquariums 2-5 Gallons. Ideal for use in mini aquariums for fish that require heated water for a long, comfortable and healthy life.
Safe UL Listed Heater
Plug'N Play Submersible Heater
Shock Proof Heater that provides natural warmth
7.5 Watt Slim Heater for 2 - 5 Gallon Aquariums
Heats your tank 5-10 degrees hotter then room temperature
The Hydor mini heater is a submersible aquarium heater for micro tanks and mini aquariums 5-10 gallons. Ideal for use in mini aquariums for fish that require heated water for a long, comfortable and healthy life. The Hydor mini heater can be placed undergravel in aquariums and terrariums.
Safe UL Listed Heater
Plug'N Play Submersible Heater
Shock Proof Heater that provides natural warmth
15 Watt Mini Heater for 5 - 10 Gallon Aquariums