Move the heater outside of the tank with these quality inline heaters. To use, simply cut the hose on your external filter and attach both ends to the heater. Plug it in the wall and it is ready to go! Contains a state-of-the-art heating film that contains no glass or metal heating coils.
Precision 62 to 94 degree Fahrenheit dial control can be set to the desired temperature. 3/4" inlet and outlet fits most common external canister filters. 120 Volt AC, 60 Hertz, UL listed. Approximately 12" length.
ETH 201 Inline Heater by Hydor at Petdiscounters.com. 200 Watt Heater for aquariums between 23 and 48 gallons in capacity.