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E300 Electronic Heater, 300W, up to 375 L

Fluval E-Series is the only digital heater range on the market to offer dual-sensor VueTech® microprocessor technology, which continuously displays accurate water temperature and visually alerts the user of any fluctuations.

E300 Electronic Heater, 300W, up to 375 L

Item #: A774 | UPC: 15561107747

E-Series is the only digital heater range on the market to offer dual-sensor VueTech® microprocessor technology, which continuously displays accurate water temperature and visually alerts the user of any fluctuations.

Models

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Features

300-Watt heater designed for aquariums up to 378.5 L
Displays water temperature digitally in Celsius or Fahrenheit
Precision temperature control allows for increments (+ or -) of 0.5 degrees
VueTech® system will change display colors if set temperature varies +/- 1°C or +/- 2°F (blue = low, green = safe zone, red = high)
Integrated fish guard provides added protection
Slim mounting bracket
For use in freshwater and saltwater aquariums

Videos & Articles

Instruction Manual & Warranty

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Looking for Parts? View All Replacement Parts

Questions & Answers

How do I switch the display between Celsius and Fahrenheit?

To change between degree scales, hold the red set lever in the full left position for at least 5 seconds. When the new degree scale is displayed, you may release the lever. After a few seconds, the display will automatically return to show the water temperature.

Why does my E Series heater sometimes flash blue in the morning?

This is probably due to the fact that the water temperature has dropped by one or two degrees overnight.

What are the minimum and maximum temperature settings on E Series heaters?

The minimum temperature is 68°F / 20°C. The maximum temperature is 93°F / 34°C.

Need Help? Get Answers. Visit the Support Center

Compare Models & Specs

Fluval E-Series is the only digital heater range on the market to offer dual-sensor VueTech® microprocessor technology, which continuously displays accurate water temperature and visually alerts the user of any fluctuations.

E50 Electronic Heater, 50W

up to 15 US Gal / 60 L

Item #

A771
UPC

15561107716
Aquarium Capacity

up to 15 US Gal / 60 L
Wattage (120 V / 60 Hz)

50W
Wattage (230-240 V / 50 Hz)

50W
Dimensions

2″ L x 1.25″ W x 9.75″ H / 5 x 2.8 x 24.5 cm

Fluval E-Series is the only digital heater range on the market to offer dual-sensor VueTech® microprocessor technology, which continuously displays accurate water temperature and visually alerts the user of any fluctuations.

E100 Electronic Heater, 100W

up to 30 US Gal / 120 L

Item #

A772
UPC

15561107723
Aquarium Capacity

up to 30 US Gal / 120 L
Wattage (120 V / 60 Hz)

100W
Wattage (230-240 V / 50 Hz)

100W
Dimensions

2″ L x 1.25″ W x 11.75″ H / 5 x 2.8 x 29.8 cm

Fluval E-Series is the only digital heater range on the market to offer dual-sensor VueTech® microprocessor technology, which continuously displays accurate water temperature and visually alerts the user of any fluctuations.

E200 Electronic Heater, 200W

up to 65 US Gal / 250 L

Item #

A773
UPC

15561107730
Aquarium Capacity

up to 65 US Gal / 250 L
Wattage (120 V / 60 Hz)

200W
Wattage (230-240 V / 50 Hz)

200W
Dimensions

2″ L x 1.25″ W x 14″ H / 5 x 2.8 x 35.5 cm

Fluval E-Series is the only digital heater range on the market to offer dual-sensor VueTech® microprocessor technology, which continuously displays accurate water temperature and visually alerts the user of any fluctuations.

E300 Electronic Heater, 300W

up to 100 US Gal / 375 L

Item #

A774
UPC

15561107747
Aquarium Capacity

up to 100 US Gal / 375 L
Wattage (120 V / 60 Hz)

300W
Wattage (230-240 V / 50 Hz)

300W
Dimensions

2″ L x 1.25″ W x 14″ H / 5 x 2.8 x 35.5 cm