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Advantages of the EHEIM compactON
Continuously monitors ammonia and freshwater pH
HINTS: Do not use Equilibrium™ when replacing evaporated water
and FlorinGro may be employed to address these requirements
Silent operation
Hydor Ext Heater 200w 16/22mm ESV Advantages of the EHEIM compactONThe Hydor External Thermal Heater is the first unique external heater for aquariums with the exclusive PTC (Positive Thermal Coefficient) technology. The self timing PTC heating element guarantees maximum safety against any risk of overheating and blowing. This extra safe element and the durable materials used mean that this heater is both energy efficient, safe and long lasting. All the ETH range are suitable for tropical and marine aquariums. It