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Fluval E300 300W Electronic Aquarium Heater
Model: E300 · US configuration
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The US E-Series 300W heater is rated for up to 100 US gallons and shares the 14-inch long-axis housing, adjustable digital temperature control and color-coded alerts.
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Explore this buying guide ↗Why consider this model?
- A possible fit when a freshwater or saltwater aquarium falls within Fluval's 100-US-gallon maximum, the location can accommodate a 14-inch long-axis heater and the keeper wants an adjustable digital display with color alerts. Its 300W rating and exact item A774 distinguish it from the smaller E100 and E200 variants.
Tradeoffs to weigh
- The 100-gallon figure is conditional and does not promise a target temperature in a given home. The heater needs good water movement; a protective guard surrounds a glass core rather than making the unit shatterproof. The display is a monitoring aid, not a certified independent measurement.
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