Simple ideas often are the best ones, for example, the aquarium heater as a rod. The heating rod is simply hung in the water and heats it. It's true that principle is still the same as decades ago, but a lot has changed in the meantime. Today the JÄGER aquarium heater is an ultra-modern thermal device using the best available technology. Now - with in its new jacket of laboratory glass - it offers another an extra quality dimension.

Simple ideas often are the best ones, for example, the aquarium heater as a rod. The heating rod is simply hung in the water and heats it. It's true that principle is still the same as decades ago, but a lot has changed in the meantime. Today the JÄGER aquarium heater is an ultra-modern thermal device using the best available technology. Now - with in its new jacket of laboratory glass - it offers another an extra quality dimension. Features include: The temperature can be precisely adjusted from 18° to 34°C and re-adjusted if required. The control accuracy is +/- 0.5°C, The heat is controlled to a constant temperature. The heating function is indicated by an on/off control lamp, The heater can be fully immersed, is protected against running dry and is suitable for fresh or marine water, The glass jacket enlarges the heating surface and ensures optimum even heat transfer. Thus, a smaller wattage than other brands will heat the same volume of water, The glass jacket is made from laboratory safety glass.

Simple ideas often are the best ones, for example, the aquarium heater as a rod. The heating rod is simply hung in the water and heats it. It's true that principle is still the same as decades ago, but a lot has changed in the meantime. Today the JÄGER aquarium heater is an ultra-modern thermal device using the best available technology. Now - with in its new jacket of laboratory glass - it offers another an extra quality dimension. Features include: The temperature can be precisely adjusted from 18° to 34°C and re-adjusted if required. The control accuracy is +/- 0.5°C, The heat is controlled to a constant temperature. The heating function is indicated by an on/off control lamp, The heater can be fully immersed, is protected against running dry and is suitable for fresh or marine water, The glass jacket enlarges the heating surface and ensures optimum even heat transfer. Thus, a smaller wattage than other brands will heat the same volume of water, The glass jacket is made from laboratory safety glass.

Simple ideas often are the best ones, for example, the aquarium heater as a rod. The heating rod is simply hung in the water and heats it. It's true that principle is still the same as decades ago, but a lot has changed in the meantime. Today the JÄGER aquarium heater is an ultra-modern thermal device using the best available technology. Now - with in its new jacket of laboratory glass - it offers another an extra quality dimension. Features include: The temperature can be precisely adjusted from 18° to 34°C and re-adjusted if required. The control accuracy is +/- 0.5°C, The heat is controlled to a constant temperature. The heating function is indicated by an on/off control lamp, The heater can be fully immersed, is protected against running dry and is suitable for fresh or marine water, The glass jacket enlarges the heating surface and ensures optimum even heat transfer. Thus, a smaller wattage than other brands will heat the same volume of water, The glass jacket is made from laboratory safety glass.

Simple ideas often are the best ones, for example, the aquarium heater as a rod. The heating rod is simply hung in the water and heats it. It's true that principle is still the same as decades ago, but a lot has changed in the meantime. Today the JÄGER aquarium heater is an ultra-modern thermal device using the best available technology. Now - with in its new jacket of laboratory glass - it offers another an extra quality dimension. Features include: The temperature can be precisely adjusted from 18° to 34°C and re-adjusted if required. The control accuracy is +/- 0.5°C, The heat is controlled to a constant temperature. The heating function is indicated by an on/off control lamp, The heater can be fully immersed, is protected against running dry and is suitable for fresh or marine water, The glass jacket enlarges the heating surface and ensures optimum even heat transfer. Thus, a smaller wattage than other brands will heat the same volume of water, The glass jacket is made from laboratory safety glass.

Simple ideas often are the best ones, for example, the aquarium heater as a rod. The heating rod is simply hung in the water and heats it. It's true that principle is still the same as decades ago, but a lot has changed in the meantime. Today the JÄGER aquarium heater is an ultra-modern thermal device using the best available technology. Now - with in its new jacket of laboratory glass - it offers another an extra quality dimension. Features include: The temperature can be precisely adjusted from 18° to 34°C and re-adjusted if required. The control accuracy is +/- 0.5°C, The heat is controlled to a constant temperature. The heating function is indicated by an on/off control lamp, The heater can be fully immersed, is protected against running dry and is suitable for fresh or marine water, The glass jacket enlarges the heating surface and ensures optimum even heat transfer. Thus, a smaller wattage than other brands will heat the same volume of water, The glass jacket is made from laboratory safety glass.

Simple ideas often are the best ones, for example, the aquarium heater as a rod. The heating rod is simply hung in the water and heats it. It's true that principle is still the same as decades ago, but a lot has changed in the meantime. Today the JÄGER aquarium heater is an ultra-modern thermal device using the best available technology. Now - with in its new jacket of laboratory glass - it offers another an extra quality dimension. Features include: The temperature can be precisely adjusted from 18° to 34°C and re-adjusted if required. The control accuracy is +/- 0.5°C, The heat is controlled to a constant temperature. The heating function is indicated by an on/off control lamp, The heater can be fully immersed, is protected against running dry and is suitable for fresh or marine water, The glass jacket enlarges the heating surface and ensures optimum even heat transfer. Thus, a smaller wattage than other brands will heat the same volume of water, The glass jacket is made from laboratory safety glass.

Simple ideas often are the best ones, for example, the aquarium heater as a rod. The heating rod is simply hung in the water and heats it. It's true that principle is still the same as decades ago, but a lot has changed in the meantime. Today the JÄGER aquarium heater is an ultra-modern thermal device using the best available technology. Now - with in its new jacket of laboratory glass - it offers another an extra quality dimension. Features include: The temperature can be precisely adjusted from 18° to 34°C and re-adjusted if required. The control accuracy is +/- 0.5°C, The heat is controlled to a constant temperature. The heating function is indicated by an on/off control lamp, The heater can be fully immersed, is protected against running dry and is suitable for fresh or marine water, The glass jacket enlarges the heating surface and ensures optimum even heat transfer. Thus, a smaller wattage than other brands will heat the same volume of water, The glass jacket is made from laboratory safety glass.

Simple ideas often are the best ones, for example, the aquarium heater as a rod. The heating rod is simply hung in the water and heats it. It's true that principle is still the same as decades ago, but a lot has changed in the meantime. Today the JÄGER aquarium heater is an ultra-modern thermal device using the best available technology. Now - with in its new jacket of laboratory glass - it offers another an extra quality dimension. Features include: The temperature can be precisely adjusted from 18° to 34°C and re-adjusted if required. The control accuracy is +/- 0.5°C, The heat is controlled to a constant temperature. The heating function is indicated by an on/off control lamp, The heater can be fully immersed, is protected against running dry and is suitable for fresh or marine water, The glass jacket enlarges the heating surface and ensures optimum even heat transfer. Thus, a smaller wattage than other brands will heat the same volume of water, The glass jacket is made from laboratory safety glass.

Simple ideas often are the best ones, for example, the aquarium heater as a rod. The heating rod is simply hung in the water and heats it. It's true that principle is still the same as decades ago, but a lot has changed in the meantime. Today the JÄGER aquarium heater is an ultra-modern thermal device using the best available technology. Now - with in its new jacket of laboratory glass - it offers another an extra quality dimension. Features include: The temperature can be precisely adjusted from 18° to 34°C and re-adjusted if required. The control accuracy is +/- 0.5°C, The heat is controlled to a constant temperature. The heating function is indicated by an on/off control lamp, The heater can be fully immersed, is protected against running dry and is suitable for fresh or marine water, The glass jacket enlarges the heating surface and ensures optimum even heat transfer. Thus, a smaller wattage than other brands will heat the same volume of water, The glass jacket is made from laboratory safety glass.

The Visitherm Heaterstats from Underworld are extensively recognised as the most accurate and the most reliable heaterstat available. Voted independently by the readers of Practical Fishkeeping in their last two reader surveys as the most widely used and the easiest to adjust heaterstat on the market.

The Visitherm Heaterstats from Underworld are extensively recognised as the most accurate and the most reliable heaterstat available. Voted independently by the readers of Practical Fishkeeping in their last two reader surveys as the most widely used and the easiest to adjust heaterstat on the market.

• The temperature can be precisely adjusted and re-adjusted if required.
• The heat is controlled to a constant temperature. The heating function is indicated by an on/off control lamp
• The glass jacket enlarges the heating surface and ensures optimum even heat transfer.
• The temperature setting is indicated using the sliding scale on the side of the heater.

Visitherm 25w Heaterstat - £17.99
Visitherm 50w Heaterstat - £18.99
Visitherm 75w Heaterstat - £18.99
Visitherm 100w Heaterstat - £18.99
Visitherm 150w Heaterstat - £18.99
Visitherm 200w Heaterstat - £19.49
Visitherm 250w Heaterstat - £20.49
Visitherm 300w Heaterstat - £20.99

The Visitherm Heaterstats from Underworld are extensively recognised as the most accurate and the most reliable heaterstat available. Voted independently by the readers of Practical Fishkeeping in their last two reader surveys as the most widely used and the easiest to adjust heaterstat on the market.

• The temperature can be precisely adjusted and re-adjusted if required.
• The heat is controlled to a constant temperature. The heating function is indicated by an on/off control lamp
• The glass jacket enlarges the heating surface and ensures optimum even heat transfer.
• The temperature setting is indicated using the sliding scale on the side of the heater.

Visitherm 25w Heaterstat - £17.99
Visitherm 50w Heaterstat - £18.99
Visitherm 75w Heaterstat - £18.99
Visitherm 100w Heaterstat - £18.99
Visitherm 150w Heaterstat - £18.99
Visitherm 200w Heaterstat - £19.49
Visitherm 250w Heaterstat - £20.49
Visitherm 300w Heaterstat - £20.99

The Visitherm Heaterstats from Underworld are extensively recognised as the most accurate and the most reliable heaterstat available. Voted independently by the readers of Practical Fishkeeping in their last two reader surveys as the most widely used and the easiest to adjust heaterstat on the market.

• The temperature can be precisely adjusted and re-adjusted if required.
• The heat is controlled to a constant temperature. The heating function is indicated by an on/off control lamp
• The glass jacket enlarges the heating surface and ensures optimum even heat transfer.
• The temperature setting is indicated using the sliding scale on the side of the heater.

Visitherm 25w Heaterstat - £17.99
Visitherm 50w Heaterstat - £18.99
Visitherm 75w Heaterstat - £18.99
Visitherm 100w Heaterstat - £18.99
Visitherm 150w Heaterstat - £18.99
Visitherm 200w Heaterstat - £19.49
Visitherm 250w Heaterstat - £20.49
Visitherm 300w Heaterstat - £20.99

The Visitherm Heaterstats from Underworld are extensively recognised as the most accurate and the most reliable heaterstat available. Voted independently by the readers of Practical Fishkeeping in their last two reader surveys as the most widely used and the easiest to adjust heaterstat on the market.

• The temperature can be precisely adjusted and re-adjusted if required.
• The heat is controlled to a constant temperature. The heating function is indicated by an on/off control lamp
• The glass jacket enlarges the heating surface and ensures optimum even heat transfer.
• The temperature setting is indicated using the sliding scale on the side of the heater.

Visitherm 25w Heaterstat - £17.99
Visitherm 50w Heaterstat - £18.99
Visitherm 75w Heaterstat - £18.99
Visitherm 100w Heaterstat - £18.99
Visitherm 150w Heaterstat - £18.99
Visitherm 200w Heaterstat - £19.49
Visitherm 250w Heaterstat - £20.49
Visitherm 300w Heaterstat - £20.99

The Visitherm Heaterstats from Underworld are extensively recognised as the most accurate and the most reliable heaterstat available. Voted independently by the readers of Practical Fishkeeping in their last two reader surveys as the most widely used and the easiest to adjust heaterstat on the market.

• The temperature can be precisely adjusted and re-adjusted if required.
• The heat is controlled to a constant temperature. The heating function is indicated by an on/off control lamp
• The glass jacket enlarges the heating surface and ensures optimum even heat transfer.
• The temperature setting is indicated using the sliding scale on the side of the heater.

Visitherm 25w Heaterstat - £17.99
Visitherm 50w Heaterstat - £18.99
Visitherm 75w Heaterstat - £18.99
Visitherm 100w Heaterstat - £18.99
Visitherm 150w Heaterstat - £18.99
Visitherm 200w Heaterstat - £19.49
Visitherm 250w Heaterstat - £20.49
Visitherm 300w Heaterstat - £20.99

The Visitherm Heaterstats from Underworld are extensively recognised as the most accurate and the most reliable heaterstat available. Voted independently by the readers of Practical Fishkeeping in their last two reader surveys as the most widely used and the easiest to adjust heaterstat on the market.

• The temperature can be precisely adjusted and re-adjusted if required.
• The heat is controlled to a constant temperature. The heating function is indicated by an on/off control lamp
• The glass jacket enlarges the heating surface and ensures optimum even heat transfer.
• The temperature setting is indicated using the sliding scale on the side of the heater.

Visitherm 25w Heaterstat - £17.99
Visitherm 50w Heaterstat - £18.99
Visitherm 75w Heaterstat - £18.99
Visitherm 100w Heaterstat - £18.99
Visitherm 150w Heaterstat - £18.99
Visitherm 200w Heaterstat - £19.49
Visitherm 250w Heaterstat - £20.49
Visitherm 300w Heaterstat - £20.99

The Visitherm Heaterstats from Underworld are extensively recognised as the most accurate and the most reliable heaterstat available. Voted independently by the readers of Practical Fishkeeping in their last two reader surveys as the most widely used and the easiest to adjust heaterstat on the market.

• The temperature can be precisely adjusted and re-adjusted if required.
• The heat is controlled to a constant temperature. The heating function is indicated by an on/off control lamp
• The glass jacket enlarges the heating surface and ensures optimum even heat transfer.
• The temperature setting is indicated using the sliding scale on the side of the heater.

Visitherm 25w Heaterstat - £17.99
Visitherm 50w Heaterstat - £18.99
Visitherm 75w Heaterstat - £18.99
Visitherm 100w Heaterstat - £18.99
Visitherm 150w Heaterstat - £18.99
Visitherm 200w Heaterstat - £19.49
Visitherm 250w Heaterstat - £20.49
Visitherm 300w Heaterstat - £20.99

The Automatic Heater Thermostat is designed to fit perfectly into the Juwel Filter Systems, therefore ensuring an even water temperature within the aquarium. Alternativley, this heater unit is also supplied witha mounting suckers, aloowing use in a non-Juwel system.

The Juwel Aquarium heater has an adjuster on the top to allow individual adjustment
of the temperature to suit your own requirements

• The temperature can be precisely adjusted and re-adjusted if required.
• The heating function is indicated by an on/off control lamp

Click Here to have a look at this products Instruction Manual.

The Automatic Heater Thermostat is designed to fit perfectly into the Juwel Filter Systems, therefore ensuring an even water temperature within the aquarium. Alternativley, this heater unit is also supplied witha mounting suckers, aloowing use in a non-Juwel system.

The Juwel Aquarium heater has an adjuster on the top to allow individual adjustment
of the temperature to suit your own requirements

• The temperature can be precisely adjusted and re-adjusted if required.
• The heating function is indicated by an on/off control lamp

Click Here to have a look at this products Instruction Manual.

Juwel 50w Heaterstat - £21.99
Juwel 100w Heaterstat - £21.99
Juwel 200w Heaterstat - £21.99
Juwel 300w Heaterstat - £21.99

The Automatic Heater Thermostat is designed to fit perfectly into the Juwel Filter Systems, therefore ensuring an even water temperature within the aquarium. Alternativley, this heater unit is also supplied witha mounting suckers, aloowing use in a non-Juwel system.

The Juwel Aquarium heater has an adjuster on the top to allow individual adjustment
of the temperature to suit your own requirements

• The temperature can be precisely adjusted and re-adjusted if required.
• The heating function is indicated by an on/off control lamp

Click Here to have a look at this products Instruction Manual.

Juwel 50w Heaterstat - £21.99
Juwel 100w Heaterstat - £21.99
Juwel 200w Heaterstat - £21.99
Juwel 300w Heaterstat - £21.99

The Automatic Heater Thermostat is designed to fit perfectly into the Juwel Filter Systems, therefore ensuring an even water temperature within the aquarium. Alternativley, this heater unit is also supplied witha mounting suckers, aloowing use in a non-Juwel system.

The Juwel Aquarium heater has an adjuster on the top to allow individual adjustment
of the temperature to suit your own requirements

• The temperature can be precisely adjusted and re-adjusted if required.
• The heating function is indicated by an on/off control lamp

Click Here to have a look at this products Instruction Manual.

Juwel 50w Heaterstat - £21.99
Juwel 100w Heaterstat - £21.99
Juwel 200w Heaterstat - £21.99
Juwel 300w Heaterstat - £21.99

The Ecotherm heaterstats are accurate and reliableand also great value for money.

Completely Submersible Automatic Aquarium Heater. It maintains the right temperature and gives superior performance, economy and security. Every component has been designed to give precise and efficient heating and to provide years of reliable service.

This Heaterstat a sensitive, dependable, lightweight and balanced, with full set of strong hooks and suction cups for a secure anchorage.

• Directly adjustable control stem is easy to turn.
• Limiting stops prevent accidental adjustments to extremely high or low temperatures.
• The durable electrical lamp indicates the on and off cycles.

The Ecotherm heaterstats are accurate and reliableand also great value for money. Completely Submersible Automatic Aquarium Heater. It maintains the right temperature and gives superior performance, economy and security. Every component has been designed to give precise and efficient heating and to provide years of reliable service. This Heaterstat a sensitive, dependable, lightweight and balanced, with full set of strong hooks and suction cups for a secure anchorage. Features include: Directly adjustable control stem is easy to turn. Limiting stops prevent accidental adjustments to extremely high or low temperatures. The durable electrical lamp indicates the on and off cycles.

The Ecotherm heaterstats are accurate and reliableand also great value for money. Completely Submersible Automatic Aquarium Heater. It maintains the right temperature and gives superior performance, economy and security. Every component has been designed to give precise and efficient heating and to provide years of reliable service. This Heaterstat a sensitive, dependable, lightweight and balanced, with full set of strong hooks and suction cups for a secure anchorage. Features include: Directly adjustable control stem is easy to turn. Limiting stops prevent accidental adjustments to extremely high or low temperatures. The durable electrical lamp indicates the on and off cycles.

The Ecotherm heaterstats are accurate and reliableand also great value for money. Completely Submersible Automatic Aquarium Heater. It maintains the right temperature and gives superior performance, economy and security. Every component has been designed to give precise and efficient heating and to provide years of reliable service. This Heaterstat a sensitive, dependable, lightweight and balanced, with full set of strong hooks and suction cups for a secure anchorage. Features include: Directly adjustable control stem is easy to turn. Limiting stops prevent accidental adjustments to extremely high or low temperatures. The durable electrical lamp indicates the on and off cycles.

The Ecotherm heaterstats are accurate and reliableand also great value for money. Completely Submersible Automatic Aquarium Heater. It maintains the right temperature and gives superior performance, economy and security. Every component has been designed to give precise and efficient heating and to provide years of reliable service. This Heaterstat a sensitive, dependable, lightweight and balanced, with full set of strong hooks and suction cups for a secure anchorage. Features include: Directly adjustable control stem is easy to turn. Limiting stops prevent accidental adjustments to extremely high or low temperatures. The durable electrical lamp indicates the on and off cycles.