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    Theo Heater 150 watt

    Theo Heater 150 watt

    Get a $40 Gift Certificate with Orders $125+ with code 40GCAUG

    Patented heating element automatically turns off if water level declines Easy temperature adjustment - knob clicks at every degree change Submersible heater with shatterproof glass resists breakage Patented heating film and special shatterproof glass... more

    $23.99

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    (275,000+)
    Fluval E Series Heaters 200 watt

    Fluval E Series Heaters 200 watt

    Get a $40 Gift Certificate with Orders $125+ with code 40GCAUG

    Innovative electronic heater for fresh and saltwater aquariums Advanced aquarium heater detects abnormal or non-optimal conditions Heater microprocessor monitors and displays aquarium water temperature The most technologically advanced submersible... more

    $53.99

    FREE shipping

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    (275,000+)
    ETH In-Line Heater 200 watt, 5/8"

    ETH In-Line Heater 200 watt, 5/8"

    Prevents temperature variations caused by poor water circulation Precise, accurate temperature setting Indicator light shows when unit is "ON" Double insulated and double sealed The first compact aquarium heater that operates externally, saving... more

    $52.99

    FREE shipping

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    (275,000+)
    Tetra 26447 Submersible Aquarium Heater, 50-Watt

    Tetra 26447 Submersible Aquarium Heater, 50-Watt

    All Tetra HT heaters have red/green indicator lights to let you know when the heater is heating(red) or on standby(green). The low voltage thermostat maintains water at 78°F without any adjustment required. Be sure purchase the correct heater for your... more

    $9.99

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    Tetra HT30 Submersible Heater 100 Watt (1030 Gal)

    Tetra HT30 Submersible Heater 100 Watt (1030 Gal)

    HT Submersible Heater (100 Watt)The new Tetra HT10 and HT30 submersible heaters for aquariums ranging from 2 to 30 gallons are easy to use. The electronic thermostat automatically adjusts heat output to keep the water at a constant 78F. All you have to... more

    $19.86 $12.29

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    Aqueon Pro Heater 150 Watt

    Aqueon Pro Heater 150 Watt

    Pro Heaters are precision calibrated aquarium heaters that are full submersible • Power Monitor light (Green �\" Heating ; Red �\" Aquarium at set temperature) • Shatterproof and Nearly Indestructible • Electronic Thermostat for Safety and Accurate... more

    $35.99

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    ViaAqua 300-Watt Quartz Glass Submersible Heater with Built-In Thermostat

    ViaAqua 300-Watt Quartz Glass Submersible Heater with Built-In Thermostat

    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 more

    $17.99

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    Perfect Bucket Heater w/ Cord Clip

    Perfect Bucket Heater w/ Cord Clip

    Perfect Bucket Heater w/ Cord Clip The Perfect Bucket Heater is an easy to use low wattage pail heater which keeps pails up to 5 gallons ice-free using just 80 watts. This is one of the most economic and environmental friendly way to keep pails of... more

    $34.99

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    Aqueon Pro Heater 250 Watt

    Aqueon Pro Heater 250 Watt

    Pro Heaters are precision calibrated aquarium heaters that are full submersible • Power Monitor light (Green �\" Heating ; Red �\" Aquarium at set temperature) • Shatterproof and Nearly Indestructible • Electronic Thermostat for Safety and Accurate... more

    $39.99

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    Fluval M300 Submersible Glass Aquarium Heater (300 watts)

    Fluval M300 Submersible Glass Aquarium Heater (300 watts)

    The Fluval "M" 300 watt submersible heater is quality manufactured in Europe using superior components and construction. This sleek, compact Fluval heater can be trusted for exceptional performance and unsurpassed reliability. Unique only to the Fluval... more

    $33.79 $25.99

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    Fluval Advance Electronic Aquarium Heater (300 Watt)

    Fluval Advance Electronic Aquarium Heater (300 Watt)

    The Fluval Advanced Electronic Aquarium Heater is a highly accurate, safe and feature rich heater for your aquarium. With easy to adjust temperature controls, you can quickly and precisely set in 0.5deg; increments. An integrated fish guard insures... more

    $64.99 $55.99

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    Marina Submersible Heater for Aquarium, Mini, 25-watt

    Marina Submersible Heater for Aquarium, Mini, 25-watt

    Small yet powerful, the mini 25-watt Marina Submersible Aquarium Heater provides reliable heating for fresh or saltwater aquariums up 5.5 US gallon aquariums. The heater includes many practical features for easy use, safety and convenience, including... more

    $14.99

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    Eheim Jager 50 Watt Aquarium Heater

    Eheim Jager 50 Watt Aquarium Heater

    Eheim Jager 50 Watt Aquarium Heater more

    $24.99

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    Aqueon Pro Heater 150 Watt

    Aqueon Pro Heater 150 Watt

    Pro Heaters are precision calibrated aquarium heaters that are full submersible • Power Monitor light (Green �\" Heating ; Red �\" Aquarium at set temperature) • Shatterproof and Nearly Indestructible • Electronic Thermostat for Safety and Accurate... more

    $39.99

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    Eheim Jager 25 Watt Aquarium Heater

    Eheim Jager 25 Watt Aquarium Heater

    Eheim Jager 25 Watt Aquarium Heater more

    $24.99

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    Tetra Pond 100 Watt Submersible Heater - 0861-1220

    Tetra Pond 100 Watt Submersible Heater - 0861-1220

    Dimensions: 3.5W x 1.63D x 8.25H in.. Plastic and metal construction. Adjustable between 72 degrees and 85 degrees F. Heater indicator light. For aquariums 10 to 30 gallons. This Tetra Pond 100 Watt Submersible Heater is easy to conceal and works in... more

    $17.98

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    Allied Precision 521G 1500 Watt Floating De Icer With Guards (Deicer Float/guard), Silver (Plastic), Outdoor Décor

    Allied Precision 521G 1500 Watt Floating De Icer With Guards (Deicer Float/guard), Silver (Plastic), Outdoor Décor

    Floating de icer Thermostatically controlled with an automatic shut off Styrofoam float is completely enclosed within a rugged plastic housing The cord exits from the top of the unit giving the heater added stability and it is less likely to tip the... more

    $63.49

    FREE shipping

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    Overstock.com

    (675,000+)
    Deep Blue Heat Stik Economy Heater 8 50 Watt

    Deep Blue Heat Stik Economy Heater 8 50 Watt

    50W Hang-on Heater Features: Easy to adjust temperature dial located on top of heater. East to install, mounts securely on aquarium rim. Equipped with activity indicator that lets you know when heater is working. Freshwater and marine aquaria safe.... more

    $16.97

    FREE shipping

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    EHEIM Jager Trutemp Aquarium Heater 102 75 Watt

    EHEIM Jager Trutemp Aquarium Heater 102 75 Watt

    Aquarium: Heaters-Submersible 720-540 completely waterproof submersible heater. Heavy duty 2mm thick shock resistent pyrex tube 2x as thick as most heaters. 64-94 degree range. Easy to adjust thermostat bistable thermostat is plus- .05 and free from... more

    $21.97

    FREE shipping

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    Aqen Heater Submersible 50 Watts

    Aqen Heater Submersible 50 Watts

    AQUEON - AQUEON SUBMERSIBLE HEATER 50WATT. Aqueon introduces the most accurate, reliable, durable and easy to use aquarium heaters on the market. Available in five sizes-wattages to fit any size aquarium. All Aqueon heaters are guaranteed for life. more

    $20.97

    FREE shipping

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    Tetra Ht10 Submersible Aquarium Heater 26447

    Tetra Ht10 Submersible Aquarium Heater 26447

    50 watt submersible heater for tanks 2 to 10 gallonsThe electronic thermostat automatically adjusts heat outputs to keep the water at a constant 78 f.Glass Electrical Heat Element more

    $236.11

    FREE shipping

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    Tetra Ht30 Submersible Aquarium Heater 26446

    Tetra Ht30 Submersible Aquarium Heater 26446

    100 watt submersible heater for tanks 10 to 30 gallonsThe electronic thermostat automatically adjusts heat output to keep the water at a constant 78 f.Glass Electrical Heat Element more

    $238.89

    FREE shipping

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    Submersible Heater 200 Watts

    Submersible Heater 200 Watts

    Submersible heater 200 wattsPart #: AQE100001502Item Name: Submersible Heater 200 WattsID: 18458-pid more

    $37.99

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    Hydor Usa Inc. Theo 200 Watt Submersible Shatterproof Heater 12" Hy00036

    Hydor Usa Inc. Theo 200 Watt Submersible Shatterproof Heater 12" Hy00036

    200W submersible aquarium heater. UL listed. Safe and reliable. Made from specially enginereed shatterproof glass. Temperature controlled and maintained by precise micro-switch. For aquariums 26-53 gallons.Length - 12 Part #: AHY00036Item Name: Theo... more

    $34.61

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    Penn Plax 12 in. 300 Watt Heater for 75/125 gal. Aquarium - CH12300

    Penn Plax 12 in. 300 Watt Heater for 75/125 gal. Aquarium - CH12300

    Automatically sets and maintains your desired temperature. Accurate to 1 degree. Fully submersible. Can be used for fresh and salt water aquariums. more

    $49.99 $21.12

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    Heater 100 Watts

    Heater 100 Watts

    Heater 100 wattsPart #: AQE100001501Item Name: Heater 100 WattsID: 18457-pid more

    $44.51

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    Hydor Usa Inc. Theo 400 Watt Submersible Shatterproof Heater 15.5" Hy00320

    Hydor Usa Inc. Theo 400 Watt Submersible Shatterproof Heater 15.5" Hy00320

    400W submersible aquarium heater. UL listed. Safe and reliable. Made from specially enginereed shatterproof glass. Temperature controlled and maintained by precise micro-switch. For aquariums 80-105 gallons.Length - 15.5"Part #: AHY00320Item Name: Theo... more

    $29.95

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    Submersible Heater 100 Watts

    Submersible Heater 100 Watts

    Submersible heater 100 wattsPart #: AQE100001500Item Name: Submersible Heater 100 WattsID: 18456-pid more

    $33.99

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    Submersible Heater 300 Watts

    Submersible Heater 300 Watts

    Submersible heater 300 wattsPart #: AQE100001503Item Name: Submersible Heater 300 WattsID: 23426-pid more

    $35.95

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    Submersible Heater 50 Watts

    Submersible Heater 50 Watts

    Submersible heater 50 wattsPart #: AQE100009498Item Name: Submersible Heater 50 WattsID: 18461-pid more

    $35.28

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    Heater 100 Watts

    Heater 100 Watts

    Heater 100 wattsPart #: AQE100001501Item Name: Heater 100 WattsID: 18457-pid more

    $32.95

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    Submersible Heater 100 Watts

    Submersible Heater 100 Watts

    Submersible heater 100 wattsPart #: AQE100001500Item Name: Submersible Heater 100 WattsID: 18456-pid more

    $31.95

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    Heater 100 Watts

    Heater 100 Watts

    Heater 100 wattsPart #: AQE100001501Item Name: Heater 100 WattsID: 18457-pid more

    $44.51

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    Submersible Heater 50 Watts

    Submersible Heater 50 Watts

    Submersible heater 50 wattsPart #: AQE100009498Item Name: Submersible Heater 50 WattsID: 18461-pid more

    $35.28

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    Aqueon Pro Heater 150 Watt (6107)

    Aqueon Pro Heater 150 Watt (6107)

    Aqueon Pro Heater 150 Watt(6107)Features: Power Monitor Light: Red For Heating And Green When Aquarium Has Reached Set Temperature. Fully Submersible And Can Be Placed Horizontally Or Vertically In The Aquarium. For Freshwater And Marine Aquariums.... more

    $72.89

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    Tetra Aquatic Reptile Heater 2" x 7-3/4" x 2-1/2" high

    Tetra Aquatic Reptile Heater 2" x 7-3/4" x 2-1/2" high

    Get a $40 Gift Certificate with Orders $125+ with code 40GCAUG

    Warm the terrarium water of your aquatic reptile with this submersible heater. Compact, low-profile, 100 watt heater boasts a protective, high-impact plastic housing that keeps your pet safely away from the heating element. Features an automatic... more

    $17.99

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    (275,000+)
    ETH In-Line Heater 200 watt, 1/2"

    ETH In-Line Heater 200 watt, 1/2"

    Get a $40 Gift Certificate with Orders $125+ with code 40GCAUG

    Prevents temperature variations caused by poor water circulation Precise, accurate temperature setting Indicator light shows when unit is "ON" Double insulated and double sealed The first compact aquarium heater that operates externally, saving... more

    $52.99

    FREE shipping

    go to store
    (275,000+)
    Theo Heater 100 watt

    Theo Heater 100 watt

    Patented heating element automatically turns off if water level declines Easy temperature adjustment - knob clicks at every degree change Submersible heater with shatterproof glass resists breakage Patented heating film and special shatterproof glass... more

    $20.99

    go to store
    (275,000+)
    Aqueon Pro Heater 200 Watt

    Aqueon Pro Heater 200 Watt

    Pro Heaters are precision calibrated aquarium heaters that are full submersible • Power Monitor light (Green �\" Heating ; Red �\" Aquarium at set temperature) • Shatterproof and Nearly Indestructible • Electronic Thermostat for Safety and Accurate... more

    $37.99

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    Fluval E 300-Watt Electronic Heater

    Fluval E 300-Watt Electronic Heater

    Fluval E Heaters 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 aquarium inhabitants. Simply the... more

    $55.99

    FREE shipping

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    More information about Fish Supplies

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