The ETH external In-Line heater uses the
advanced PTC system, which is a special polymer sheet silk-screened with heating
ink (like your car's windshield defroster) instead of metal coils. This
state-of-the-art system allows the unit to be left running without water for a
short time with no damage. The ETH external heater
has an adjustable heating control, and installs vertically in the return line of a canister filter or sump, allowing better heat distribution as water returns to the aquarium. Requires tubing.
Specifications:
16mm or 5/8" inlet and outlet
Rated for aquariums 53-80 gallons
300 watts
Temperature control: 66-90°F
