Fully Submersible, Fully Waterproof and UL Certified Heater suitable for both fresh and salt water aquarium set ups featuring TrueTemp technology
TruTemp dial with readjustment ring allows the user to calibrate the heater for ...
Theo 50W for aquariums 5–14 gallons New aquarium heater functioning with the exclusive PTC (Positive Thermal Coefficient) technology. The Hydor Theo heater line features PTC patented thermal technology which makes it among the ...
The all new Cobalt Aquatics MINI-Therm compact and fully submersible heaters feature a constant ON design, specifically for small aquariums up to 1.2 gallons (4.5L).
The heater casing is made from a thermal-plastic polymer that...