ETH 200 In-Line Heater UL Listed 200 Watt for 12mm & 1/2" Hose External thermal heater which includes the PTC system. Suitable for all external canister filters The Hydor ETH in-line external heater is designed for vertica...
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 ...
Hydor 15 Watt Mini Heater For Tanks 5-10 Gallons MINI HEATER helps increase by a few degrees Fahrenheit/Celsius the water temperature of mini aquariums compared to the room temperature where they are positioned. Specifications...
The SLIM HEATER supplies Continuous Safe Gentle Heat that increases the temperature in small aquariums or bowls, approximately 5 to 10 degrees above ambient room temperature. There are no glass components to crack or break and do...