Eheim 300 Watt Thermocontrol Aquarium Heater Milwaukee Inline controller allows pump speed

Inline controller allows pump speed adjustment for easier tuning

Reef Crest Bulk DI Resin (1

Two replacement diaphragms with plastic mounting blocks

so it is rare for them to nip on corals

Special recirculation feature supports rotor self-cleaning

Eheim 300 Watt Thermocontrol Aquarium Heater Milwaukee Inline controller allows pump speedEheim 300 Watt Thermocontrol Aquarium Heater Maximum Thermocontrol Heating for Large Systems The Eheim 300 Watt Thermocontrol Aquarium Heater provides high output adjustable heating for large freshwater and marine aquariums. Built with Eheim's fully submersible glass heater design, it delivers consistent heat transfer, accurate temperature control, and dependable performance for systems with greater heating demand. Eheim Thermocontrol 300W Features