In-Line Heater 200W

The In-Line Heater 200W installs directly into the return hose of a canister filter, heating water as it flows back to the aquarium. This keeps all heating hardware outside the tank, maintaining a clean aesthetic and eliminating the risk of fish or invertebrates contacting a hot glass tube.

Precise electronic temperature control is built into the compact housing, with a digital display showing current water temperature and setpoint. The unit is compatible with most 16/22mm and 12/16mm hose sizes via adaptor fittings included in the package.

Because all passing water is heated uniformly in the flow path, temperature distribution throughout the aquarium is exceptionally even, avoiding the localised hot spots that stationary submersible heaters can produce. Ideal for planted tanks, Dutch aquascapes, and any setup where visual cleanliness is a priority.