Interpet Deltatherm Aquarium Fish Tank Heater, adjustable, for Tropical and Marine, 25 W, for aquariums up to 30 litres,Black

It is as described and working well. The only issue is the same as ever that the suction pads don’t last long.

Easy to use. Used this for a 4 feet by 1 foot tropical fish tank.

I have 8 ft fish tank temperature is constant at both ends of tank with two of these heaters .

Easy to use and keeps temperature consistent

Didn't even last the year I'm in UK with tank sitting at 30 degrees as we have a heatwave with x2 thermometers in the tank and it's set to 27 degrees and it's clicking on upon inspection it looks as if there's water within the unit itself great whilst working but didn't even last a year.

Very easy to setup

I sent it back after realising it had water inside/condensation otherwise works fine. I was just worried it could harm my fish.

Probably the nicest looking heater I’ve had, would recommend