Shop fully submersible aquarium heater

Sponsored
$261.99
Innovative Marine Helio PTC Smart Reef Aquarium Heater (400 Watt - [2 X 200W])
Amazon.com
51
Free shipping
$261.99
Innovative Marine Helio PTC Smart Reef Aquarium Heater (400 Watt - [2 X 200W])
Amazon.com
51
$31.49
Submersible Fish Tank Heater For Aquarium: 200W/300W/500W Aquarium Heaters With Dual Temperature Digital LED Display - Overheating And Off-Water
Amazon.com
3
$31.49
Submersible Fish Tank Heater For Aquarium: 200W/300W/500W Aquarium Heaters With Dual Temperature Digital LED Display - Overheating And Off-Water
Amazon.com
3
$199.99
LINGLONGTEMP 1800W Titanium Fully Submersible,Portable Swimming Pool & Hot Tub Immersion Water Heater With GFCI, Temperature Control, Anti-Corrosion
Amazon.com
1
Free shipping
$199.99
LINGLONGTEMP 1800W Titanium Fully Submersible,Portable Swimming Pool & Hot Tub Immersion Water Heater With GFCI, Temperature Control, Anti-Corrosion
Amazon.com
1
$90.99
Aquatop 500W Titanium Heater With Controller - Fully Submersible - Up To 150 Gal - 68-92°F Adjustable Temperature - Ideal For Turtles & Large Fish
Amazon.com
335
Free shipping
$90.99
Aquatop 500W Titanium Heater With Controller - Fully Submersible - Up To 150 Gal - 68-92°F Adjustable Temperature - Ideal For Turtles & Large Fish
Amazon.com
335
$168.90
1600W Titanium Fully Submersible Portable Electric Immersion Water Heater, 100% Waterproof, Built-In Thermostat, Overheating Prevention, Bucket
Amazon.com
14
Free shipping
$168.90
1600W Titanium Fully Submersible Portable Electric Immersion Water Heater, 100% Waterproof, Built-In Thermostat, Overheating Prevention, Bucket
Amazon.com
14
$51.69
Fishkeeper Aquarium Heater, 1000 W Adjustable Fish Tank Heater With Digital Display Controller, Submersible Water Heater With Over-Temperature
Amazon.com
60
Free shipping
$51.69
Fishkeeper Aquarium Heater, 1000 W Adjustable Fish Tank Heater With Digital Display Controller, Submersible Water Heater With Over-Temperature
Amazon.com
60
$69.99
Hygger Aquarium Heater, Submersible Fish Tank Heater With Over-Temperature Protection And Automatic Power-Off, Fish Heater With Digital Controller
Amazon.com
26
Free shipping
$69.99
Hygger Aquarium Heater, Submersible Fish Tank Heater With Over-Temperature Protection And Automatic Power-Off, Fish Heater With Digital Controller
Amazon.com
26
$27.99
Orlushy Submersible Aquarium Heater,500W Fish Tahk Heater With Adjust Knob Thermostat 2 Suction Cups And Free Thermometer Suitable For Marine
Amazon.com
17K+
$27.99
Orlushy Submersible Aquarium Heater,500W Fish Tahk Heater With Adjust Knob Thermostat 2 Suction Cups And Free Thermometer Suitable For Marine
Amazon.com
17K+
$59.89
HITOP 1000W Digital Aquarium Heater: Titanium Fish Tank Heater With Temperature Control Device, Submersible Heater For Freshwater/Seawater Up To 300
Amazon.com
49
Free shipping
$59.89
HITOP 1000W Digital Aquarium Heater: Titanium Fish Tank Heater With Temperature Control Device, Submersible Heater For Freshwater/Seawater Up To 300
Amazon.com
49
$48.99
Hygger Aquarium Heater 500W/800W/1000W,Fish Tank Heater With Danger Warning Automatically Stops Heating System And Digital LED Controller,For
Amazon.com
26
Free shipping
$48.99
Hygger Aquarium Heater 500W/800W/1000W,Fish Tank Heater With Danger Warning Automatically Stops Heating System And Digital LED Controller,For
Amazon.com
26
$37.68
OASE Indoor Aquatics Heatup 300 Watt Aquarium Heater, Clear
Amazon.com
37
Free shipping
$37.68
OASE Indoor Aquatics Heatup 300 Watt Aquarium Heater, Clear
Amazon.com
37
$80.25
Finnex Titanium Aquarium Heater THU Series, Premium Nickel Coil, Large 19mm Tube, Heater Guard, 800 Watts
Amazon.com
3
Free shipping
$80.25
Finnex Titanium Aquarium Heater THU Series, Premium Nickel Coil, Large 19mm Tube, Heater Guard, 800 Watts
Amazon.com
3
$39.99
Hitauing Aquarium Heater, Upgrade AP01 300W/500W/800W/1000W Fish Tank Heater With Intelligent IC Chip Controller-Fast Heating, Precise Temperature
Amazon.com
19
Free shipping
$39.99
Hitauing Aquarium Heater, Upgrade AP01 300W/500W/800W/1000W Fish Tank Heater With Intelligent IC Chip Controller-Fast Heating, Precise Temperature
Amazon.com
19
$34.99
Fluval M 150-Watt Submersible Aquarium Heater - Reliable, Compact Heating With Mirror Technology For Fresh & Saltwater Tanks Up To 45 Gallons
Amazon.com
4K+
$34.99
Fluval M 150-Watt Submersible Aquarium Heater - Reliable, Compact Heating With Mirror Technology For Fresh & Saltwater Tanks Up To 45 Gallons
Amazon.com
4K+
$69.89
GRILLME 1500W Titanium Fully Submersible Portable Electric Immersion Water Heater,Bucket Water Heater,Seawater Heater For Fish Tank,Seawater
Amazon.com
63
Free shipping
$69.89
GRILLME 1500W Titanium Fully Submersible Portable Electric Immersion Water Heater,Bucket Water Heater,Seawater Heater For Fish Tank,Seawater
Amazon.com
63
$29.99
Orlushy 300W Submersible Aquarium Heater, Adjustable Fish Tank Heater With Digital Display External Controller, Overheat Protection And Free
Amazon.com
174
$29.99
Orlushy 300W Submersible Aquarium Heater, Adjustable Fish Tank Heater With Digital Display External Controller, Overheat Protection And Free
Amazon.com
174
$34.99
OASE Indoor Aquatics Heatup 150 Watt Aquarium Heater
Amazon.com
22
$34.99
OASE Indoor Aquatics Heatup 150 Watt Aquarium Heater
Amazon.com
22
$15.62
Viaaqua 200-Watt Quartz Glass Submersible Heater With Built-In Thermostat
Amazon.com
1K+
Free shipping
$15.62
Viaaqua 200-Watt Quartz Glass Submersible Heater With Built-In Thermostat
Amazon.com
1K+
$19.97
Lakkzoom Immersion Water Heater With 304 Stainless Steel Cover Intelligent Temperature Control And Digital LCD Thermometer Electric Portable Bucket
Amazon.com
57
$19.97
Lakkzoom Immersion Water Heater With 304 Stainless Steel Cover Intelligent Temperature Control And Digital LCD Thermometer Electric Portable Bucket
Amazon.com
57
$69.89
GRILLME 1500W Immersion Water Heater With Intelligent Temperature Controller,Fully Submersible Portable Electric Heater,5 Galons Bucket Heater
Amazon.com
16
Free shipping
$69.89
GRILLME 1500W Immersion Water Heater With Intelligent Temperature Controller,Fully Submersible Portable Electric Heater,5 Galons Bucket Heater
Amazon.com
16
$8.88
AQUANEAT Aquarium Heater, 50W Fish Tank Heater, Adjustable Submersible Water Thermostat With Thermometer
Amazon.com
181
$8.88
AQUANEAT Aquarium Heater, 50W Fish Tank Heater, Adjustable Submersible Water Thermostat With Thermometer
Amazon.com
181
$35.99
FREESEA Aquarium Heater For Fish Tank: 100W/200W/300W/500W Submersible Fish Tank Heater With Over-Temperature And Off-Water Protection For 40-75
Amazon.com
17
Free shipping
$35.99
FREESEA Aquarium Heater For Fish Tank: 100W/200W/300W/500W Submersible Fish Tank Heater With Over-Temperature And Off-Water Protection For 40-75
Amazon.com
17
$30.99
Fluval M 50-Watt Submersible Heater
Amazon.com
4K+
$30.99
Fluval M 50-Watt Submersible Heater
Amazon.com
4K+
$26.97
HITOP 400W 600W Double Tube Aquarium Heater, Sturdy Fish Tank Heater With Case, Adjustable Heater For 45-125Gal Fresh Water/Saltwater
Amazon.com
13
$26.97
HITOP 400W 600W Double Tube Aquarium Heater, Sturdy Fish Tank Heater With Case, Adjustable Heater For 45-125Gal Fresh Water/Saltwater
Amazon.com
13
$23.39
Small Aquarium Heater For Fish Tank: 50W/100W/200W/300W/500W Submersible Betta Turtle Heaters With Accurate Temperature LED Digital Display -
Amazon.com
$23.39
Small Aquarium Heater For Fish Tank: 50W/100W/200W/300W/500W Submersible Betta Turtle Heaters With Accurate Temperature LED Digital Display -
Amazon.com
$15.99
Hygger 25W Small Aquarium Heater, Betta Fish Tank Heater With Adjustable Temperature External Controller And Over-Temperature Protection, For 5-10
Amazon.com
17
$15.99
Hygger 25W Small Aquarium Heater, Betta Fish Tank Heater With Adjustable Temperature External Controller And Over-Temperature Protection, For 5-10
Amazon.com
17
$19.99
Hygger Nano Tank Heater | Submersible Fish Tank Heater - Glass Aqua 15W [HG097]
Glass Aqua Store
$19.99
Hygger Nano Tank Heater | Submersible Fish Tank Heater - Glass Aqua 15W [HG097]
Glass Aqua Store
$26.99
Hygger Aquarium Betta Heater,25W/50W/100W/150W/300W/800W Removable Shell Submersible Fish Tank Heater With LED Digital Display,25W Suitable For 1-5
Amazon.com
1
$26.99
Hygger Aquarium Betta Heater,25W/50W/100W/150W/300W/800W Removable Shell Submersible Fish Tank Heater With LED Digital Display,25W Suitable For 1-5
Amazon.com
1
$32.99
Fluval M 100-Watt Submersible Heater
Amazon.com
4K+
$32.99
Fluval M 100-Watt Submersible Heater
Amazon.com
4K+
$18.99
Orlushy 25W Submersible Mini Fish Tank Heater, Adjustable Aquarium Heater With Digital Display External Controller, Overheat Protection And Free
Amazon.com
174
$18.99
Orlushy 25W Submersible Mini Fish Tank Heater, Adjustable Aquarium Heater With Digital Display External Controller, Overheat Protection And Free
Amazon.com
174
$99.89
GRILLME 1500W Titanium Fully Submersible Portable Electric Immersion Water Heater With Intelligent Temperature Controller,Bucket Water Heater
Amazon.com
30
Free shipping
$99.89
GRILLME 1500W Titanium Fully Submersible Portable Electric Immersion Water Heater With Intelligent Temperature Controller,Bucket Water Heater
Amazon.com
30
$32.89
OASE Indoor Aquatics Heatup 200 Watt Aquarium Heater
Amazon.com
34
$32.89
OASE Indoor Aquatics Heatup 200 Watt Aquarium Heater
Amazon.com
34
$26.99
Hitauing Aquarium Heater, 50W/100W/200W/300W/500W Submersible Fish Tank Heater With Over-Temperature Protection And Automatic Power-Off When Leaving
Amazon.com
3K+
$26.99
Hitauing Aquarium Heater, 50W/100W/200W/300W/500W Submersible Fish Tank Heater With Over-Temperature Protection And Automatic Power-Off When Leaving
Amazon.com
3K+
$17.99
Yukihalu Small Submersible Aquarium Heater, Adjustable Mini Fish Tank Heater 25W 50W 100W 200W 300W With External Temperature Controller, LED
Amazon.com
1K+
$17.99
Yukihalu Small Submersible Aquarium Heater, Adjustable Mini Fish Tank Heater 25W 50W 100W 200W 300W With External Temperature Controller, LED
Amazon.com
1K+
$38.99
$45.99
Fluval Submersible Heaters In Blue, Size: 300W | Petsmart
PetSmart
In store
23
Curbside
$38.99
$45.99
Fluval Submersible Heaters In Blue, Size: 300W | Petsmart
PetSmart
23
$23.99
FREESEA Aquarium Fish Tank Heater: 50W Small Submersible Aquarium Heaters With Adjustable Digital LED Controller Leaving Water Automatic Stop
Amazon.com
43
$23.99
FREESEA Aquarium Fish Tank Heater: 50W Small Submersible Aquarium Heaters With Adjustable Digital LED Controller Leaving Water Automatic Stop
Amazon.com
43
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    Shop fully submersible aquarium heater

    Sponsored
    $261.99
    Innovative Marine Helio PTC Smart Reef Aquarium Heater (400 Watt - [2 X 200W])
    Amazon.com
    51
    Free shipping
    $261.99
    Innovative Marine Helio PTC Smart Reef Aquarium Heater (400 Watt - [2 X 200W])
    Amazon.com
    51
    $31.49
    Submersible Fish Tank Heater For Aquarium: 200W/300W/500W Aquarium Heaters With Dual Temperature Digital LED Display - Overheating And Off-Water
    Amazon.com
    3
    $31.49
    Submersible Fish Tank Heater For Aquarium: 200W/300W/500W Aquarium Heaters With Dual Temperature Digital LED Display - Overheating And Off-Water
    Amazon.com
    3
    $199.99
    LINGLONGTEMP 1800W Titanium Fully Submersible,Portable Swimming Pool & Hot Tub Immersion Water Heater With GFCI, Temperature Control, Anti-Corrosion
    Amazon.com
    1
    Free shipping
    $199.99
    LINGLONGTEMP 1800W Titanium Fully Submersible,Portable Swimming Pool & Hot Tub Immersion Water Heater With GFCI, Temperature Control, Anti-Corrosion
    Amazon.com
    1
    $90.99
    Aquatop 500W Titanium Heater With Controller - Fully Submersible - Up To 150 Gal - 68-92°F Adjustable Temperature - Ideal For Turtles & Large Fish
    Amazon.com
    335
    Free shipping
    $90.99
    Aquatop 500W Titanium Heater With Controller - Fully Submersible - Up To 150 Gal - 68-92°F Adjustable Temperature - Ideal For Turtles & Large Fish
    Amazon.com
    335
    $168.90
    1600W Titanium Fully Submersible Portable Electric Immersion Water Heater, 100% Waterproof, Built-In Thermostat, Overheating Prevention, Bucket
    Amazon.com
    14
    Free shipping
    $168.90
    1600W Titanium Fully Submersible Portable Electric Immersion Water Heater, 100% Waterproof, Built-In Thermostat, Overheating Prevention, Bucket
    Amazon.com
    14
    $51.69
    Fishkeeper Aquarium Heater, 1000 W Adjustable Fish Tank Heater With Digital Display Controller, Submersible Water Heater With Over-Temperature
    Amazon.com
    60
    Free shipping
    $51.69
    Fishkeeper Aquarium Heater, 1000 W Adjustable Fish Tank Heater With Digital Display Controller, Submersible Water Heater With Over-Temperature
    Amazon.com
    60
    $69.99
    Hygger Aquarium Heater, Submersible Fish Tank Heater With Over-Temperature Protection And Automatic Power-Off, Fish Heater With Digital Controller
    Amazon.com
    26
    Free shipping
    $69.99
    Hygger Aquarium Heater, Submersible Fish Tank Heater With Over-Temperature Protection And Automatic Power-Off, Fish Heater With Digital Controller
    Amazon.com
    26
    $27.99
    Orlushy Submersible Aquarium Heater,500W Fish Tahk Heater With Adjust Knob Thermostat 2 Suction Cups And Free Thermometer Suitable For Marine
    Amazon.com
    17K+
    $27.99
    Orlushy Submersible Aquarium Heater,500W Fish Tahk Heater With Adjust Knob Thermostat 2 Suction Cups And Free Thermometer Suitable For Marine
    Amazon.com
    17K+
    $59.89
    HITOP 1000W Digital Aquarium Heater: Titanium Fish Tank Heater With Temperature Control Device, Submersible Heater For Freshwater/Seawater Up To 300
    Amazon.com
    49
    Free shipping
    $59.89
    HITOP 1000W Digital Aquarium Heater: Titanium Fish Tank Heater With Temperature Control Device, Submersible Heater For Freshwater/Seawater Up To 300
    Amazon.com
    49
    $48.99
    Hygger Aquarium Heater 500W/800W/1000W,Fish Tank Heater With Danger Warning Automatically Stops Heating System And Digital LED Controller,For
    Amazon.com
    26
    Free shipping
    $48.99
    Hygger Aquarium Heater 500W/800W/1000W,Fish Tank Heater With Danger Warning Automatically Stops Heating System And Digital LED Controller,For
    Amazon.com
    26
    $37.68
    OASE Indoor Aquatics Heatup 300 Watt Aquarium Heater, Clear
    Amazon.com
    37
    Free shipping
    $37.68
    OASE Indoor Aquatics Heatup 300 Watt Aquarium Heater, Clear
    Amazon.com
    37
    $80.25
    Finnex Titanium Aquarium Heater THU Series, Premium Nickel Coil, Large 19mm Tube, Heater Guard, 800 Watts
    Amazon.com
    3
    Free shipping
    $80.25
    Finnex Titanium Aquarium Heater THU Series, Premium Nickel Coil, Large 19mm Tube, Heater Guard, 800 Watts
    Amazon.com
    3
    $39.99
    Hitauing Aquarium Heater, Upgrade AP01 300W/500W/800W/1000W Fish Tank Heater With Intelligent IC Chip Controller-Fast Heating, Precise Temperature
    Amazon.com
    19
    Free shipping
    $39.99
    Hitauing Aquarium Heater, Upgrade AP01 300W/500W/800W/1000W Fish Tank Heater With Intelligent IC Chip Controller-Fast Heating, Precise Temperature
    Amazon.com
    19
    $34.99
    Fluval M 150-Watt Submersible Aquarium Heater - Reliable, Compact Heating With Mirror Technology For Fresh & Saltwater Tanks Up To 45 Gallons
    Amazon.com
    4K+
    $34.99
    Fluval M 150-Watt Submersible Aquarium Heater - Reliable, Compact Heating With Mirror Technology For Fresh & Saltwater Tanks Up To 45 Gallons
    Amazon.com
    4K+
    $69.89
    GRILLME 1500W Titanium Fully Submersible Portable Electric Immersion Water Heater,Bucket Water Heater,Seawater Heater For Fish Tank,Seawater
    Amazon.com
    63
    Free shipping
    $69.89
    GRILLME 1500W Titanium Fully Submersible Portable Electric Immersion Water Heater,Bucket Water Heater,Seawater Heater For Fish Tank,Seawater
    Amazon.com
    63
    $29.99
    Orlushy 300W Submersible Aquarium Heater, Adjustable Fish Tank Heater With Digital Display External Controller, Overheat Protection And Free
    Amazon.com
    174
    $29.99
    Orlushy 300W Submersible Aquarium Heater, Adjustable Fish Tank Heater With Digital Display External Controller, Overheat Protection And Free
    Amazon.com
    174
    $34.99
    OASE Indoor Aquatics Heatup 150 Watt Aquarium Heater
    Amazon.com
    22
    $34.99
    OASE Indoor Aquatics Heatup 150 Watt Aquarium Heater
    Amazon.com
    22
    $15.62
    Viaaqua 200-Watt Quartz Glass Submersible Heater With Built-In Thermostat
    Amazon.com
    1K+
    Free shipping
    $15.62
    Viaaqua 200-Watt Quartz Glass Submersible Heater With Built-In Thermostat
    Amazon.com
    1K+

    • Aquarium Heaters - 10 Best Submersible Aquarium Heater

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