• Orlushy Submersible Aquarium Heater 300W-Fish Tahk Heater with Adjust Knob Thermostat 2 Suction Cups Suitable for Marine Reef Fish Tank Sump

    Product Features: 1. 110V-120V/60HZ 6-foot power cord, 2. Fully submersible. 3. Universal heater for marine, freshwater or tropical aquariums 4.automatic safety shut-off feature, and overheating protection. Available In: Length - 9" 15-30 Gallons, 100 Watts Length - 9.5" 30-50 Gallons, 150 Watts Length - 11" 40-60 Gallons, 200 Watts Length - 11" 50-80 Gallons, 300 Watts Submersible Aquarium Heaters are made from thermal shatter-resistant quartz glass and were designed to absorb impacts, making them extremely durable. A power indicator light turns on when the unit is heating, Can be positioned ... [Read More]

    • ASIN: B07H2KRWFF
    • UPC: 799862950300
    • ASIN: B07H2KRWFF
    • Brand: Orlushy
    • Size: 300W
    • Manufacturer: nova

  • EHEIM Jager Aquarium Thermostat Heater 300W

    All 9 EHEIM Heater models are 100% fully submersible and come with a new TruTemp dial that allows the user to recalibrate the heater within a +/- 0.5F degree accurancy for precise temperature readings.

    • ASIN: B003I5UC0W
    • UPC: 720686361591
    • ASIN: B003I5UC0W
    • Brand: Eheim
    • Size: 300W
    • Manufacturer: Eheim

  • Aqueon Glass Submersible Adjustable Heaters

    Aqueon Submersible Aquarium Heaters are made from thermal shatter-resistant quartz glass and designed to absorb impacts, making them extremely durable. A power indicator light turns on when the unit is heating and is equipped with a 6-foot power cord.  UL approved, the heater is also programmed to turn itself off when not properly submersed to avoid overheating and damage. This heater can be positioned at a vertical or horizontal angle and used in freshwater and saltwater aquariums. This 100W is for aquariums up to 40 gallons. Other wattage heaters are also available, 50W, 150W, 200W and 300W... [Read More]

    • ASIN: B07D1KHRTR
    • UPC: 015905000338
    • ASIN: B07D1KHRTR
    • Brand: Aqueon
    • Size: 300 W
    • Manufacturer: Central Aquatics

  • Aqueon Pro Series Aquarium Heater, 300W, Black

    Aqueon Pro aquarium heaters are built with a durable, non-corrosive shell for strength and even heat distribution. Each unit is equipped with electronic thermostats for accurate temperature settings and advanced gravity shutoff feature safety. The temperature settings are adjustable, LED power indicator illuminates Red when the unit is actively heating. This 300W Pro heater is for use in aquariums up to 100G and can be used for freshwater or saltwater aquarium; and can be positioned horizontally or vertically. Other wattage heaters are also available, 50W, 150W, 200W and 300W.

    • ASIN: B07JDQQ51Q
    • UPC: 015905000611
    • ASIN: B07JDQQ51Q
    • Brand: Aqueon
    • Size: 300 Wide
    • Manufacturer: Central Aquatics

  • ViaAqua 300-Watt Quartz Glass Submersible Heater with Aquarium Thermometer with Suction Cup

    Product Description High Quality, Break Resistant Quartz Glass Construction Fully Submersible Simple Installation Available In A Variety Of Sizes Suction Cups For Securing To The Aquarium Visible Temperature Setting For Use In Fresh And Saltwater Amazon.com Feature High Quality, Break Resistant Quartz Glass Construction Fully Submersible Simple Installation Available In A Variety Of Sizes Suction Cups For Securing To The Aquarium Visible Temperature Setting For Use In Fresh And Saltwater Models Part List Temperature Adjustment Waterproof Double Insulation Temperature Setting Water Level Line P... [Read More]

    • ASIN: B07455J58N
    • UPC: 651046603238
    • ASIN: B07455J58N
    • Brand: ViaAqua
    • Manufacturer: Commodity Axis

  • Hygger 300W Digital Quartz Aquarium Heater for Fresh-Water and Salt-Water, with External IC Thermostat Controller and Thermometer, Fast Heating Submersible Thermostat for Fish Tank 30-60 Gallon

    Hygger high-power digital quartz aquarium heater is specially designed for medium and large fish tank use, fast heating up for 30-120gallon aquariums.We now have 300W and 500W fish tank heaters available.It comes with 1 quartz heater, 1 IC temp controller and 1 thermometer, the cables are all long enough for use indoors.Other features of submersible heater:1. Fast heating and reliable, fully automatic control.2. Black plastic heater guard with suction cups3. For freshwater and saltwater use4. The controller with memory function in case of power-down.How to use the temp setting? Press the butto... [Read More]

    • ASIN: B07XD1XD2H
    • UPC: 716852490080
    • ASIN: B07XD1XD2H
    • Brand: Hygger
    • Size: 300W (for 30-60 gallon)
    • Manufacturer: hygger

  • HITOP 50W 100W 300W Aquarium Fish Tank Heater, Traditional Glass Aquarium Heater with Thermometer (300W-grey)

    300W Aquarium Heater, 11 x 1 x 1 in,1.5M/4.9ft cable Fish tank size:30-60 Gollons This heater is simple in appearance, placed in your aquarium, unobtrusive and will not destroy the fish tank landscape.  We adopted 2mm thickened quartz glass, much safer for both human and animals. And it will turnoff automatically when reaches temperature you set, without overheating. This heater is easy to operation, just adjust the temperature adjustment button to set the require temperature, then you can forget it , the heater will automatically control the power on or off to the heating part according to ... [Read More]

    • ASIN: B07MFX8LS3
    • UPC: 765951785221
    • ASIN: B07MFX8LS3
    • Brand: HITOP
    • Size: 300W-grey
    • Manufacturer: Haisen

  • VIVOSUN 300W Aquarium Heater Submersible Titanium Fish Tank Heaters with Intelligent LED Temperature Display and External Temperature Controller

    Outer temperature control Touch to adjust the temperature range from 68℉ to 94℉ (20°C-34°C) The heater must be fully submerged underwater, whether horizontally or vertically set up. Do not expose this product to open air otherwise you risk overheating your tank. Error Code and LED Display Blue Light: Temp has reached preset value, now the heater will keep it. Red Light: Heater is now heating. E1: Water shortage or improper installation. E2: The temperature is over 94℉ and the heater will now stop heating. E6: The temperature is over 96℉ and the heater will now stop heating.

    • ASIN: B07TXN9VST
    • UPC: 615435164410
    • ASIN: B07TXN9VST
    • Brand: VIVOSUN
    • Size: 300W
    • Manufacturer: VIVOSUN

  • BOEESPAT Aquarium Heater 300W,Fish Tank Heater with Anti Scald Protector and Adjustable Thermostat Suitable for Saltwater and Freshwater,One Extra Free Thermometer

    Product Features: 1. 110V-120V/60HZ 34.7-foot power cord, 2. Fully submersible Aquarium Heater . 3. Universal heater for marine, freshwater or tropical aquariums 4.automatic safety shut-off feature, and overheating protection. Available In: Length - 14.5" 50-80 Gallons, Submersible Aquarium Heaters are made from thermal shatter-resistant quartz glass and were designed to absorb impacts, making them extremely durable. A power indicator light turns on when the unit is heating, Can be positioned at a vertical or horizontal angle. Can be used in fresh or saltwater fish tanks. Package inc... [Read More]

    • ASIN: B07XNTH7XH
    • UPC: 884399239872
    • ASIN: B07XNTH7XH
    • Brand: BOEESPAT
    • Manufacturer: BOEESPAT

  • HITOP 50W 100W 300W Submersible Aquarium Heater (300W-black)

    300W AquariumHeater, 11 x 1 x 1 in,1.5M/4.9ft cable Fish tanksize:30-60Gollons This heater is simplein appearance, placed in your aquarium, unobtrusive and will not destroy thefish tank landscape.  We adopted 2mmthickened quartz glass, much safer for both human and animals. And it will turnoff automatically when reaches temperature you set, without overheating. This heater iseasy to operation, just adjust the temperature adjustment button to set therequire temperature, then you can forget it , the heater will automaticallycontrol the power on or off to the heating part according to the diffe... [Read More]

    • ASIN: B07MQCMQY6
    • UPC: 765951785252
    • ASIN: B07MQCMQY6
    • Brand: HITOP
    • Size: 300W-black
    • Manufacturer: Haisen

  • FREESEA 300 Watt Aquarium Fish Tank Heater with Aquarium Submersible Thermometer

    aquarium heater

    • ASIN: B07SN23G2X
    • UPC: 724779003085
    • ASIN: B07SN23G2X
    • Brand: FREESEA
    • Size: 300Watt for 40-60 gallon tank
    • Manufacturer: FREESEA

  • Uniclife 300 W Submersible Aquarium Heater HT-6300 with Thermometer for 80 Gallon Fish Tank

    Aquarium heater 300W

    • ASIN: B07WQWHGSP
    • UPC: 669818895491
    • ASIN: B07WQWHGSP
    • Brand: Uniclife
    • Manufacturer: Uniclife

  • ZEETOON 300 Watt Aquarium Heater Safe Submersible Fish Tank Heater Titanium Warmer with 2 Artificial Plant 1 Stick-on Thermometer LED Digital Thermostat Controller for Salt or Fresh Water 40-80 Gallon

    Package included: 1* Submersible Aquarium Heater( length of cable is 1.5 m/5.9 in) 2* Suction Cups 2*Aquarium Decor Artificial Plant 1*Stick-on Thermometer Strip 1* User Manual` Please read instruction and caution carefully before use, and keep it away from children. Note! Please don't put it in the water if the wire or heater damaged When there is a heater in the fish thak, do not put your hand in to the water Safety Tips: ✔️1. Please don't plug in before the heater is well installed. ✔️2. Keep the Aquarium Heater fully Submerged in Water. ✔️3. Stick the Aquarium Heater Horizont... [Read More]

    • ASIN: B07XXS4ZFT
    • UPC: 608651396475
    • ASIN: B07XXS4ZFT
    • Brand: ZEETOON
    • Size: 300W Aquarium Heater
    • Manufacturer: ZEETOON

  • Hygger Submersible Aquarium Heater, Adjustable Fish Tank Heater Compact Reliable Betta Heater, Heat-Resistant Milky Quartz Made, with External Temp Controller, 50W/100W/300W, 7-60 Gallon (300W)

    Hygger compact aquarium heater is very safe and durable, milky quartz material made, can resist a high temp of 1800℉, excellent in explosion-proof & shatter-resistant.The service life can be more than 3 years if only using in fresh water.Led indicator light inside the quartz tube.When the tank heater is heating, the indicator light is red. When it stops heating, the light is off.When does the heater stop and restart heating? The aquarium heater is very reliable to maintain the water temp as your set. It will stop heating when the water temp is 1.5-2℉ above the set temp and will restart hea... [Read More]

    • ASIN: B07G4BKPHB
    • UPC: 688209998177
    • ASIN: B07G4BKPHB
    • Brand: Hygger
    • Size: 300W
    • Manufacturer: hygger

  • GOOBAT Adjustable Titanium Aquarium Heater 300W, Aquatic Turtle Heater with Intelligent LED Temperature, Thermometer and Adjustable Temperature Controller for 50-90 Gallon Aquariums

    The 300 watt Titanium Heater incorporates the best technology and electrical components to date. The heating element is manufactured of pure titanium that will not crack like conventional glass heaters. With an adjustable remote controller and thermostat with LCD read out that makes setting and reading the temperature easy. The remote temperature probe ensures a consistent temperature throughout your whole aquarium. Features * Titanium Heating Element * Fully Submersible * Adjustable Temperature Setting * Easy To Read LCD Temperature * Compact Design * Remote Temperature Controller * For Use ... [Read More]

    • ASIN: B07SG85M31
    • UPC: 652054409676
    • ASIN: B07SG85M31
    • Brand: GOOBAT
    • Size: 300W
    • Manufacturer: GOOBAT

  • Fluval E 300 Watt Electronic Heater

    Fluval E 300 Watt Electronic Heater- Maintaining proper temperature is one of the most important factors in aquarium care. The Fluval E Heaters continuously monitor and display aquarium water temperature, ensuring the well-being of your

    • UPC: 25378769
    • Model: A774
    • Color: RedMulticolor
    • Size: 300-watt
    • Rating: 1.0

  • Penn Plax Fully Submersible Aquarium Heater, 300-Watt

    The Cascade Heat line of aquarium heaters from Penn-Plax brings trouble-free and reliable operation to your aquarium at a bargain price. Each heater features heavy duty coils encased in thick glass tubing and heats aquariums

    • UPC: 20419857
    • Model: CH12300
    • Color: N/AOther
    • Rating: 4.083

  • Marineland Precision Aquarium Heater, Up to 80 Gallons, 300-Watt

    Get precise control of your aquarium temperature with the Precision Submersible Heater. This Heater combines an adjustable temperature dial, a high visibility temperature display and an advanced heating element to keep your aquarium water at

    • UPC: 45659823
    • Model: ML90654
    • Color: Multicolor
    • Size: 300 Watt
    • Rating: 3.143

  • Aqueon Glass Submersible Aquarium Heater, 300W

    Aqueon Submersible Aquarium Heaters are made from thermal shatter-resistant quartz glass and were designed to absorb impacts, making them extremely durable. A LED indicator light comes on when unit is heating. UL approved, the heater

    • UPC: 771267255
    • Model: 276575
    • Color: Black
    • Size: 300 WATT

  • Marina Submersible Aquarium Heater, 10.5-Inch, 300-Watt

    Marina Submersible Heater 10.5",

    • UPC: 54997504
    • Model: 11236
    • Rating: 4.0

  • Eheim Jager Aquarium Heaters 300 Watts - For 159-264 Gallon Tanks (20 Tall)

    EHEIM GmbH Jager Aquarium Heater, 300

    • UPC: 36789977
    • Model: J9300
    • Color: Multicolor

  • Aquarium Masters Pro Series Submersible Aquarium Heater, 300-Watt

    300 Watt Pro Series Submersible Aquarium Heater The Professional Aquarium Glass Submersible Heater, 300 Watt, provides accurate thermal control for freshwater and saltwater aquariums, aquaculture, terrariums and hydroponic systems! Heats 60 gallon aquariums to 100

    • UPC: 123225254

  • Via Aqua Titanium Heater 300 Watt - (80 Gallons)

    Titanium heating tube with easy-to-read LCD controllerIntegrated memory automatically returns last set temperatureAuto shut-off at 90°FTemperature range of 64-88°FFor use in salt and freshwater

    • UPC: 398553888
    • Model: CX73558

  • Via Aqua Quartz Heater 300 Watts - 80 Gallon Tank - Pack of 4

    High Quality, Break Resistant Quartz Glass ConstructionFully SubmersibleSimple InstallationAvailable In A Variety Of SizesSuction Cups For Securing To The AquariumVisible Temperature SettingFor Use In Fresh And SaltwaterThis is an offering for multi quantity bundle -

    • UPC: 915122296
    • Color: Blue

  • Aquascape 300 Watt Stainless Steel Pond & Water Feature Heater & Deicer (2 Pack)

    If you're needing a new pond heater and de icer, this floating Aquascape heater is quite the catch!Maintaining an opening in the surface of the ice is an important key to the health of your

    • UPC: 665187681
    • Model: 39000
    • Color: Silver

  • Best Aquarium Heater 2018 Fluval E Series LED

    We test your aquarium heaters and determine what's, Good?, Better?, BEST? | BRStv Investigates

    The Best Aquarium Heater | Fluval E300 Review