Saltwater Aquarium Heaters & Thermometers

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1 - 36 of 39 Results

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Eheim Jager Thermostat Aquarium Heater, 150- watt slide 1 of 2
Eheim Jager Thermostat Aquarium Heater, 150- watt slide 2 of 2
Eheim Jager Thermostat Aquarium Heater, 150- watt slide 1 of 2
Eheim Jager Thermostat Aquarium Heater, 150- watt slide 2 of 2
Eheim Jager Thermostat Aquarium Heater, 150- watt slide 1 of 2
Eheim Jager Thermostat Aquarium Heater, 150- watt slide 2 of 2
Slide 1 of 2
Eheim Jager Thermostat Aquarium Heater, 150- watt slide 1 of 2
Eheim Jager Thermostat Aquarium Heater, 150- watt slide 2 of 2
Eheim Jager Thermostat Aquarium Heater, 150- watt slide 1 of 2
Eheim Jager Thermostat Aquarium Heater, 150- watt slide 2 of 2
Eheim Jager Thermostat Aquarium Heater, 150- watt slide 1 of 2
Eheim Jager Thermostat Aquarium Heater, 150- watt slide 2 of 2

Eheim Jager Thermostat Aquarium Heater, 150- watt

Rated 4.1 out of 5 stars
101
$32.11 Chewy Price
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Free 1-3 day delivery on first-time orders over $35
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Underwater Treasures Floating Glass Fish Thermometer

Rated 4.5 out of 5 stars
58
$1.75 Chewy Price
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Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Slide 1 of 5
Tetra HT10 Submersible Aquarium Heater & Electronic Thermostat, 50-watt slide 1 of 5
Tetra HT10 Submersible Aquarium Heater & Electronic Thermostat, 50-watt slide 2 of 5
Tetra HT10 Submersible Aquarium Heater & Electronic Thermostat, 50-watt slide 3 of 5
Tetra HT10 Submersible Aquarium Heater & Electronic Thermostat, 50-watt slide 4 of 5
Tetra HT10 Submersible Aquarium Heater & Electronic Thermostat, 50-watt slide 5 of 5
Tetra HT10 Submersible Aquarium Heater & Electronic Thermostat, 50-watt slide 1 of 5
Tetra HT10 Submersible Aquarium Heater & Electronic Thermostat, 50-watt slide 2 of 5
Tetra HT10 Submersible Aquarium Heater & Electronic Thermostat, 50-watt slide 3 of 5
Tetra HT10 Submersible Aquarium Heater & Electronic Thermostat, 50-watt slide 4 of 5
Tetra HT10 Submersible Aquarium Heater & Electronic Thermostat, 50-watt slide 5 of 5
Tetra HT10 Submersible Aquarium Heater & Electronic Thermostat, 50-watt slide 1 of 5
Tetra HT10 Submersible Aquarium Heater & Electronic Thermostat, 50-watt slide 2 of 5
Tetra HT10 Submersible Aquarium Heater & Electronic Thermostat, 50-watt slide 3 of 5
Tetra HT10 Submersible Aquarium Heater & Electronic Thermostat, 50-watt slide 4 of 5
Tetra HT10 Submersible Aquarium Heater & Electronic Thermostat, 50-watt slide 5 of 5

Tetra HT10 Submersible Aquarium Heater & Electronic Thermostat, 50-watt

Rated 3.6 out of 5 stars
76
$13.97 Chewy Price
$19.99 List Price
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Free 1-3 day delivery on first-time orders over $35
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Slide 1 of 2
Fluval Submersible Glass Aquarium Heater, 50-watt slide 1 of 2
Fluval Submersible Glass Aquarium Heater, 50-watt slide 2 of 2
Fluval Submersible Glass Aquarium Heater, 50-watt slide 1 of 2
Fluval Submersible Glass Aquarium Heater, 50-watt slide 2 of 2
Fluval Submersible Glass Aquarium Heater, 50-watt slide 1 of 2
Fluval Submersible Glass Aquarium Heater, 50-watt slide 2 of 2

Fluval Submersible Glass Aquarium Heater, 50-watt

Rated 3.8 out of 5 stars
45
$30.99 Chewy Price
$34.99 List Price
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Free 1-3 day delivery on first-time orders over $35
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Coralife Battery Operated Digital Thermometer for Aquariums

Rated 4.8 out of 5 stars
26
$8.02 Chewy Price
$12.49 List Price
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Free 1-3 day delivery on first-time orders over $35
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SunGrow Betta Fish Thermometer Sticker, Temperature Strip for Small Aquarium & Reptiles Tank

Rated 3.8 out of 5 stars
31
$4.99 Chewy Price
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Free 1-3 day delivery on first-time orders over $35
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Marineland Precision Heater, 150 Watt

Rated 2.4 out of 5 stars
67
$21.90 Chewy Price
$39.99 List Price
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Free 1-3 day delivery on first-time orders over $35
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Cobalt Aquatics Electronic Neo-Therm Pro Submersible Aquarium Heater, 150-Watt

Rated 4.1 out of 5 stars
38
$68.81 Chewy Price
$117.81 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Aqueon Preset Aquarium Heater, 100-watt

Rated 3.4 out of 5 stars
258
$17.39 Chewy Price
$25.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

GloFish Submersible Fish Heater, 50-watts

Rated 3.6 out of 5 stars
8
$15.97 Chewy Price
$20.59 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Marina Floating Thermometer with Suction Cup for Aquariums

Rated 3.9 out of 5 stars
181
$4.48 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Aqueon Pro Aquarium Heater, 300 watt

Rated 3.6 out of 5 stars
94
$54.95 Chewy Price
$69.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Tetra HT55 Submersible Aquarium Heater & Electronic Thermostat, 200-watt

Rated 2.6 out of 5 stars
15
$18.54 Chewy Price
$28.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Eheim Thermocontrol E Fish Aquarium Heater, 150 W

Rated 3.9 out of 5 stars
12
$47.99 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Fluval Electronic Aquarium Heater, 300-watt

Rated 3.6 out of 5 stars
48
$49.97 Chewy Price
$54.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Hydor In-Line External Hose Aquarium Heater, Black, 300-watt, 5/8-in

$92.99 Chewy Price
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Free 1-3 day delivery on first-time orders
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H2Pro Titanium Aquarium Heater, 300-watt

Rated 3.7 out of 5 stars
6
$67.30 Chewy Price
$74.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Aquatop Submersible Glass Aquarium Heater, 150-watt

Rated 3.6 out of 5 stars
90
$25.99 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Zoo Med BettaTherm Mini Size Betta Bowl Heater

Rated 1.8 out of 5 stars
9
$10.00 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Cobalt Aquatics Neo-Glass Submersible Aquarium Heater, 300-watt

Rated 2.8 out of 5 stars
10
$33.10 Chewy Price
$51.41 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Aqueon Aquatic Flat Heater, 7.5-watt

Rated 3.3 out of 5 stars
35
$14.95 Chewy Price
$17.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Tetra HT40 Submersible Aquarium Heater & Electronic Thermostat, 150-watt

Rated 2.7 out of 5 stars
12
$18.85 Chewy Price
$27.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Aqueon Mini Aquarium Heater, 2-gal, 5 watt

Rated 3.5 out of 5 stars
63
$10.64 Chewy Price
$16.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Aquatop Nano Aquarium Thermostat Heater, 15-watt

Rated 2.9 out of 5 stars
15
$25.99 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Hydor Betta Bowl Slim Fish Tank Heater

$13.99 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Aquatop External Digital Dual Temp Display Thermometer

$9.99 Chewy Price
$32.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Aquatop Floating Glass Thermometer with Suction Cup Mount

Rated 1 out of 5 stars
1
$6.99 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Aquatop Weighted Glass Thermometer with Claw

Rated 4 out of 5 stars
2
$83.99 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Cobalt Aquatics Mini-Therm Submersible Aquarium Heater, 5-Watt

Rated 2.7 out of 5 stars
14
$12.38 Chewy Price
$18.20 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

SunGrow Betta Fish & Reptiles Aquarium Tank Water Temperature Digital Thermometer Gauge

Rated 3.4 out of 5 stars
11
$6.99 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Out of Stock

Hydor Micro & Mini Aquarium Slim Heater, 15-watt

Rated 3.9 out of 5 stars
33

Free delivery on first-time orders over $35
Free 365-day returns

Out of Stock

Hydor Micro & Mini Aquarium Slim Fish Heater, Black, 7.5-watt

Rated 5 out of 5 stars
1

Free delivery on first-time orders over $35
Free 365-day returns

Out of Stock

Penn-Plax Aquarium LED Display Heater, 300W

Rated 2 out of 5 stars
4

Free delivery on first-time orders
Free 365-day returns

Out of Stock

Hydor Theo Shatterproof Aquarium Heater, 50-watt

Rated 3.5 out of 5 stars
38

Free delivery on first-time orders over $35
Free 365-day returns

Out of Stock

Hydor Theo Aquarium Fish Heater, Black, 400-watt

Rated 2.5 out of 5 stars
2

Free delivery on first-time orders over $35
Free 365-day returns

Out of Stock

Aquatop Smart-Temp Thermometer with Magnet Mount

Rated 4.5 out of 5 stars
2

Free 1-3 day delivery on first-time orders
Free 365-day returns

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