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 make this submersible heater virtually unbreakable. Theo switches itself off if the heater is not fully submersed - avoiding overheating and damage.
Precise temperature knob clicks in 1°F increments, and an indicator lamp lets you know when it's on. Suction-cup clamps included. 5-1/2 ft. cord. UL-Listed.
Please click on "More Information" for features.
Minimum water level line
Patented Heating Technology
This submersible heater operates with PTC, a heating technology patented by Hydor. Its heating element is made of a special polymer that has been silk printed with special ink. The ink heats up with the passing of electric current, and the heat is transferred to the water. Its unique feature is that it is self-regulating. The heating element turns off automatically when the heater is not fully submersed in water (such as when performing water changes). This prevents overheating and breakage of the unit.
Unplug all electrical appliances before making water changes or performing any maintenance.
Use this heater indoors only.
Check voltage to verify the one that's reported on the heater label corresponds to your electrical supply.
Do no use if either the cable or the heater are damaged.
Do not plug in when out of the water.
Keep water at or above "Minimum Water Level" line.
A sharp drop in water temperature is extremely stressful to fish and can compromise their immune system. Improperly sized heaters may not be able to maintain their set temperature and cause aquarium temperature to fluctuate several degrees per day.
Temperature can be the single most important component in the life of your fish. Fish, in the wild and in our aquariums, are very sensitive to changes in temperature. Learn the affects of water temperature on fish health.
Don't take the quality of your tap water for granted. If you draw your water from a well, nature may not be providing you the perfect balance. If you are using tap water from your municipal department, it likely includes minerals and additives.
Algae are prolific and opportunistic organisms that take advantage of aquarium systems that are out of balance. Water quality issues create ideal conditions for algae. This article explains how proper water quality helps control algae.
Please note: Return of electrical equipment to Drs. Foster & Smith for exchange or refund is limited to 60 days from the date of purchase. Beyond 60 days, please contact the manufacturer for repair or replacement as covered by the manufacturer's warranty.
Customers who bought this ALSO BOUGHT:(showing items - of 10)