Hydor Theo water heaters features PTC patented thermal technology which makes it among the safest water heater lines on the market. Made from specially engineered shatterproof glass which, while not unbreakable, is designed to resist breakage in most normal situations. Theo heaters unlike its rivals will not break if the water level goes beneath the heater.
Hydor water heaters come in 5 different sizes to suit a variety of reservoir capacities:
|Size||50w, 100w, 150w, 200w, 300w|