Heaters

Items 1 to 48 of 72 total

  • Aqueon Mini Heater - 10 W
    The Aqueon 10 W Mini Heater is the perfect size heater for desktop aquariums up to 5 gallons in size. A perfect match for the MiniBows! This cUL approved fully submersible heater is shatterproof and features a thermal safety shut-off.

    Regular Price: USD 12.99

    Sale Price USD 8.99

    Regular Price: USD 12.99

    Sale Price USD 8.99

  • Aqueon Aquatic Flat Heater - 15 W
    • Ideal for small desktop aquariums up to 10 gallons
    • Energy-efficient heater consumes a mere 15 watts!
    • Easy to install with submersible design and suction cups
    • Secures to the sides or bottom of your aquarium
    USD 10.99
    USD 10.99
  • Eheim Jager Heater Double Suction Holder
    Replacement Heater Holder for all Eheim Jager Heaters, complete with rubber suction cups. The heater holder holds the heater away from the aquarium glass allowing for water circulation over the entire unit.

    Regular Price: USD 5.49

    Sale Price USD 3.49

    Regular Price: USD 5.49

    Sale Price USD 3.49

  • Aqueon Aquatic Flat Heater - 7.5 W
    • Ideal for small desktop aquariums up to 3 gallons
    • Energy-efficient heater consumes a mere 7.5 watts!
    • Easy to install with submersible design and suction cups
    • Secures to the sides or bottom of your aquarium
    USD 8.99
    USD 8.99
  • Hydor Slim Heater for Bettas & Bowls - 7.5 W
    • Compact, fully submersible, shock-proof heater
    • Features 90 degree cord angle for best fit in Betta bowls
    • Suitable for 2 to 5 gallon aquariums and bowls
    • UL Listed for safety

    Regular Price: USD 11.99

    Sale Price USD 8.99

    Regular Price: USD 11.99

    Sale Price USD 8.99

  • Cobalt Aquatics Neo-Therm Dual Heater - 300 W
    • Modern, super flat design
    • Easy to set "one touch" system
    • Accurate electronic thermostat (±0.5 degrees F)
    • LEDs display set and actual temperature
    • Shatterproof outer casing protects electrical components
    USD 119.23
    USD 119.23
  • Penn Plax Heater Holder Suction Cups - 2 pk
    Heaters Holders & Guards. Penn Plax Suction Cup Heater Holder for standard sized glass aquarium heaters.

    Regular Price: USD 2.49

    Sale Price USD 2.24

    Regular Price: USD 2.49

    Sale Price USD 2.24

  • Eheim Jager TruTemp Submersible Heater - 300 W
    • Features a shatterproof glass construction
    • TruTemp dial adjusts from 18° to 34° C (65° to 93° F)
    • Thermo safety control enables "running dry" protection
    • On/off indicator light verifies heater functions
    • Includes mounting bracket and suction cups

    Regular Price: USD 34.99

    Sale Price USD 23.99

    Regular Price: USD 34.99

    Sale Price USD 23.99

  • Hagen Heater Holder/Hose Bracket
    Plastic Heater Holder for Thermal Compact / Thermal Pre-set. Also for Fluval 104 and 204

    Regular Price: USD 2.99

    Sale Price USD 2.49

    Regular Price: USD 2.99

    Sale Price USD 2.49

  • Marina Suction Cups for Heaters (up to 3/4" dia.) - 2 pk
    Marina Suction Cups are designed to hold heaters measuring up to 3/4" in diameter. Powerful, long-lasting suction keeps your heater securely in place.

    Regular Price: USD 0.99

    Sale Price USD 0.79

    Regular Price: USD 0.99

    Sale Price USD 0.79

  • Lee's Heater Holders - 2 pk
    The Heater Holder features a clip with a suction cup that is to be used to secure 1" heater tubing to the wall of the aquarium. The Heater Holder can also be used to secure 1" siphon or uplift tubes.

    Regular Price: USD 1.19

    Sale Price USD 1.07

    Regular Price: USD 1.19

    Sale Price USD 1.07

  • Marineland VisiTherm Deluxe Heater Mounting Bracket
    • Perfect for VisiTherm submersible aquarium heaters
    • Quickly attaches your heater to the aquarium glass
    • Easy-to-use mounting bracket keeps heaters secure
    • Suitable for use with any model of VisiTherm Heater
    USD 4.99
    USD 4.99
  • Eheim Jager TruTemp Submersible Heater - 150 W
    • Features a shatterproof glass construction
    • TruTemp dial adjusts from 18° to 34° C (65° to 93° F)
    • Thermo safety control enables "running dry" protection
    • On/off indicator light verifies heater functions
    • Includes mounting bracket and suction cups

    Regular Price: USD 29.99

    Sale Price USD 21.99

    Regular Price: USD 29.99

    Sale Price USD 21.99

  • Eheim Jager TruTemp Submersible Heater - 125 W
    • Features a shatterproof glass construction
    • TruTemp dial adjusts from 18° to 34° C (65° to 93° F)
    • Thermo safety control enables "running dry" protection
    • On/off indicator light verifies heater functions
    • Includes mounting bracket and suction cups
    USD 28.99
    USD 28.99
  • Eheim Jager TruTemp Submersible Heater - 75 W
    • Features a shatterproof glass construction
    • TruTemp dial adjusts from 18° to 34° C (65° to 93° F)
    • Thermo safety control enables "running dry" protection
    • On/off indicator light verifies heater functions
    • Includes mounting bracket and suction cups
    USD 24.99
    USD 24.99
  • Eheim Jager TruTemp Submersible Heater - 50 W
    • Features a shatterproof glass construction
    • TruTemp dial adjusts from 18° to 34° C (65° to 93° F)
    • Thermo safety control enables "running dry" protection
    • On/off indicator light verifies heater functions
    • Includes mounting bracket and suction cups

    Regular Price: USD 23.99

    Sale Price USD 17.99

    Regular Price: USD 23.99

    Sale Price USD 17.99

  • Eheim Jager TruTemp Submersible Heater - 100 W
    • Features a shatterproof glass construction
    • TruTemp dial adjusts from 18° to 34° C (65° to 93° F)
    • Thermo safety control enables "running dry" protection
    • On/off indicator light verifies heater functions
    • Includes mounting bracket and suction cups

    Regular Price: USD 27.99

    Sale Price USD 19.99

    Regular Price: USD 27.99

    Sale Price USD 19.99

  • Marineland Precision Submersible Heater - 100 W
    • Powerful submersible heater for aquariums up to 29 gallons
    • Equally capable in both freshwater and saltwater aquariums
    • Advanced heating element provides even heat distribution
    • Thermal safety switch automatically prevents heater failure
    • cUL Listed and backed by a class-leading lifetime warranty!

    Regular Price: USD 23.99

    Sale Price USD 17.99

    Regular Price: USD 23.99

    Sale Price USD 17.99

  • Marineland Precision Submersible Heater - 400 W
    • Powerful submersible heater for aquariums up to 125 gallons
    • Equally capable in both freshwater and saltwater aquariums
    • Advanced heating element provides even heat distribution
    • Thermal safety switch automatically prevents heater failure
    • cUL Listed and backed by a class-leading lifetime warranty!

    Regular Price: USD 46.99

    Sale Price USD 39.99

    Regular Price: USD 46.99

    Sale Price USD 39.99

  • Aqueon Submersible Aquarium Heater - 150 W
    Aqueon Submersible Heaters are accurate, reliable, durable and easy to use. Each unit is calibrated twice to ensure accuracy within +/- 1degrees F. Made from thermal shatter-resistant glass designed to absorb impacts.

    Regular Price: USD 28.99

    Sale Price USD 19.99

    Regular Price: USD 28.99

    Sale Price USD 19.99

  • Aqueon Pro Submersible Heater - 50 W
    Aqueon Pro Heaters are accurate, reliable, durable, and easy to use. They are constructed using a shatterproof and nearly indestructible outer shell, and feature a durable aluminum core for strength and even heat distribution. Fully submersible.

    Regular Price: USD 29.99

    Sale Price USD 26.99

    Regular Price: USD 29.99

    Sale Price USD 26.99

  • Tetra Submersible Heater - HT-55 - 200 W
    • Submersible glass heater for aquariums 40 to 55 gallons in size
    • Electronic thermostat maintains a constant 78±2° F (25±1° C)
    • LED indicator enables visual confirmation of heater operation
    • Convenient suction cup mount makes installation a breeze
    • Features a heat and shock-resistant borosilicate glass housing

    Regular Price: USD 24.99

    Sale Price USD 17.99

    Regular Price: USD 24.99

    Sale Price USD 17.99

  • Aqueon Submersible Aquarium Heater - 200 W
    Aqueon Submersible Heaters are accurate, reliable, durable and easy to use. Each unit is calibrated twice to ensure accuracy within +/- 1degrees F. Made from thermal shatter-resistant glass designed to absorb impacts.

    Regular Price: USD 29.99

    Sale Price USD 19.99

    Regular Price: USD 29.99

    Sale Price USD 19.99

  • Aqueon Submersible Aquarium Heater - 300 W
    Aqueon Submersible Heaters are accurate, reliable, durable and easy to use. Each unit is calibrated twice to ensure accuracy within +/- 1degrees F. Made from thermal shatter-resistant glass designed to absorb impacts.

    Regular Price: USD 31.99

    Sale Price USD 24.99

    Regular Price: USD 31.99

    Sale Price USD 24.99

  • Cobalt Aquatics Accu-Therm Heater - 200 W
    • Advanced, fully submersible heater
    • Equally capable in freshwater and saltwater environments
    • Computer-tested accurate to ± 2 ° Fahrenheit
    • Features an easily calibrated thermostat and Triac circuit
    • Ceramic radiator delivers even heat distribution
    USD 31.99
    USD 31.99
  • Hydor Theo Submersible Heater - 50 W
    THEO aquarium heater has all the necessary features for safe and precise temperature maintance of the water in your tank. The exclusive technology and the high quality of the components guarantee a long lasting product.

    Regular Price: USD 24.99

    Sale Price USD 18.99

    Regular Price: USD 24.99

    Sale Price USD 18.99

  • Aqueon Pro Submersible Heater - 250 W
    Aqueon Pro Heaters are accurate, reliable, durable, and easy to use. They are constructed using a shatterproof and nearly indestructible outer shell, and feature a durable aluminum core for strength and even heat distribution. Fully submersible.

    Regular Price: USD 35.99

    Sale Price USD 32.99

    Regular Price: USD 35.99

    Sale Price USD 32.99

  • Tetra Submersible Heater - HT-30 - 100 W
    • Submersible glass heater for aquariums 10 to 30 gallons in size
    • Electronic thermostat maintains a constant 78±2° F (25±1° C)
    • LED indicator enables visual confirmation of heater operation
    • Convenient suction cup mount makes installation a breeze
    • Features a heat and shock-resistant borosilicate glass housing

    Regular Price: USD 15.99

    Sale Price USD 12.99

    Regular Price: USD 15.99

    Sale Price USD 12.99

  • Tetra Submersible Heater - HT-10 - 50 W
    • Submersible glass heater for aquariums 2 to 10 gallons in size
    • Electronic thermostat maintains a constant 78±2° F (25±1° C)
    • LED indicator enables visual confirmation of heater operation
    • Convenient suction cup mount makes installation a breeze
    • Features a heat and shock-resistant borosilicate glass housing

    Regular Price: USD 12.99

    Sale Price USD 8.99

    Regular Price: USD 12.99

    Sale Price USD 8.99

  • Marineland Precision Submersible Heater - 50 W
    • Powerful submersible heater for aquariums up to 12 gallons
    • Equally capable in both freshwater and saltwater aquariums
    • Advanced heating element provides even heat distribution
    • Thermal safety switch automatically prevents heater failure
    • cUL Listed and backed by a class-leading lifetime warranty!

    Regular Price: USD 21.99

    Sale Price USD 18.99

    Regular Price: USD 21.99

    Sale Price USD 18.99

  • Marineland Precision Submersible Heater - 150 W
    • Powerful submersible heater for aquariums up to 40 gallons
    • Equally capable in both freshwater and saltwater aquariums
    • Advanced heating element provides even heat distribution
    • Thermal safety switch automatically prevents heater failure
    • cUL Listed and backed by a class-leading lifetime warranty!

    Regular Price: USD 24.99

    Sale Price USD 19.99

    Regular Price: USD 24.99

    Sale Price USD 19.99

  • Marineland Precision Submersible Heater - 200 W
    • Powerful submersible heater for aquariums up to 55 gallons
    • Equally capable in both freshwater and saltwater aquariums
    • Advanced heating element provides even heat distribution
    • Thermal safety switch automatically prevents heater failure
    • cUL Listed and backed by a class-leading lifetime warranty!

    Regular Price: USD 25.99

    Sale Price USD 21.99

    Regular Price: USD 25.99

    Sale Price USD 21.99

  • Marineland Precision Submersible Heater - 250 W
    • Powerful submersible heater for aquariums up to 70 gallons
    • Equally capable in both freshwater and saltwater aquariums
    • Advanced heating element provides even heat distribution
    • Thermal safety switch automatically prevents heater failure
    • cUL Listed and backed by a class-leading lifetime warranty!

    Regular Price: USD 26.99

    Sale Price USD 21.99

    Regular Price: USD 26.99

    Sale Price USD 21.99

  • Marineland Precision Submersible Heater - 300 W
    • Powerful submersible heater for aquariums up to 80 gallons
    • Equally capable in both freshwater and saltwater aquariums
    • Advanced heating element provides even heat distribution
    • Thermal safety switch automatically prevents heater failure
    • cUL Listed and backed by a class-leading lifetime warranty!

    Regular Price: USD 28.99

    Sale Price USD 24.99

    Regular Price: USD 28.99

    Sale Price USD 24.99

  • Zoo Med Bettatherm Mini Size Betta Bowl Heater - 7.5 W
    The Bettatherm Mini Size Betta Bowl Heater is a convenient small, round-size heater that fits most fish or Betta bowls. This fully-submersible heater can be buried under gravel to increase the water temperature 5-10° over ambient room temperature.
    USD 12.99
    USD 12.99

    Out of stock

  • Aqueon Submersible Aquarium Heater - 50 W
    Aqueon Submersible Heaters are accurate, reliable, durable and easy to use. Each unit is calibrated twice to ensure accuracy within +/- 1degrees F. Made from thermal shatter-resistant glass designed to absorb impacts.

    Regular Price: USD 24.99

    Sale Price USD 18.99

    Regular Price: USD 24.99

    Sale Price USD 18.99

  • Aqueon Submersible Aquarium Heater - 100 W
    Aqueon Submersible Heaters are accurate, reliable, durable and easy to use. Each unit is calibrated twice to ensure accuracy within +/- 1degrees F. Made from thermal shatter-resistant glass designed to absorb impacts.

    Regular Price: USD 27.99

    Sale Price USD 18.99

    Regular Price: USD 27.99

    Sale Price USD 18.99

  • Cobalt Aquatics Neo-Therm Heater - 25 W
    • Modern, super flat design
    • Easy to set "one touch" system
    • Accurate electronic thermostat (±0.5 degrees F)
    • LEDs display set and actual temperature
    • Shatterproof outer casing protects electrical components
    USD 56.99
    USD 56.99
  • Cobalt Aquatics Neo-Therm Heater - 50 W
    • Modern, super flat design
    • Easy to set "one touch" system
    • Accurate electronic thermostat (±0.5 degrees F)
    • LEDs display set and actual temperature
    • Shatterproof outer casing protects electrical components
    USD 57.99
    USD 57.99
  • Cobalt Aquatics Neo-Therm Heater - 75 W
    • Modern, super flat design
    • Easy to set "one touch" system
    • Accurate electronic thermostat (±0.5 degrees F)
    • LEDs display set and actual temperature
    • Shatterproof outer casing protects electrical components
    USD 60.99
    USD 60.99
  • Cobalt Aquatics Neo-Therm Heater - 100 W
    • Modern, super flat design
    • Easy to set "one touch" system
    • Accurate electronic thermostat (±0.5 degrees F)
    • LEDs display set and actual temperature
    • Shatterproof outer casing protects electrical components
    USD 62.99
    USD 62.99

    Out of stock

  • Cobalt Aquatics Neo-Therm Heater - 150 W
    • Modern, super flat design
    • Easy to set "one touch" system
    • Accurate electronic thermostat (±0.5 degrees F)
    • LEDs display set and actual temperature
    • Shatterproof outer casing protects electrical components
    USD 72.99
    USD 72.99
  • Cobalt Aquatics Accu-Therm Heater - 25 W
    • Advanced, fully submersible heater
    • Equally capable in freshwater and saltwater environments
    • Computer-tested accurate to ± 2 ° Fahrenheit
    • Features an easily calibrated thermostat and Triac circuit
    • Ceramic radiator delivers even heat distribution
    USD 25.99
    USD 25.99
  • Cobalt Aquatics Accu-Therm Heater - 50 W
    • Advanced, fully submersible heater
    • Equally capable in freshwater and saltwater environments
    • Computer-tested accurate to ± 2 ° Fahrenheit
    • Features an easily calibrated thermostat and Triac circuit
    • Ceramic radiator delivers even heat distribution
    USD 26.99
    USD 26.99
  • Cobalt Aquatics Accu-Therm Heater - 75 W
    • Advanced, fully submersible heater
    • Equally capable in freshwater and saltwater environments
    • Computer-tested accurate to ± 2 ° Fahrenheit
    • Features an easily calibrated thermostat and Triac circuit
    • Ceramic radiator delivers even heat distribution
    USD 27.99
    USD 27.99
  • Cobalt Aquatics Accu-Therm Heater - 100 W
    • Advanced, fully submersible heater
    • Equally capable in freshwater and saltwater environments
    • Computer-tested accurate to ± 2 ° Fahrenheit
    • Features an easily calibrated thermostat and Triac circuit
    • Ceramic radiator delivers even heat distribution
    USD 28.99
    USD 28.99

    Out of stock

  • Cobalt Aquatics Accu-Therm Heater - 150 W
    • Advanced, fully submersible heater
    • Equally capable in freshwater and saltwater environments
    • Computer-tested accurate to ± 2 ° Fahrenheit
    • Features an easily calibrated thermostat and Triac circuit
    • Ceramic radiator delivers even heat distribution
    USD 30.99
    USD 30.99
  • Cobalt Aquatics Accu-Therm Heater - 250 W
    • Advanced, fully submersible heater
    • Equally capable in freshwater and saltwater environments
    • Computer-tested accurate to ± 2 ° Fahrenheit
    • Features an easily calibrated thermostat and Triac circuit
    • Ceramic radiator delivers even heat distribution
    USD 33.99
    USD 33.99
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