The JUWEL heater safely and reliably ensures the correct temperature in your aquarium. Depending on room temperature and aquarium size, your JUWEL heater will achieve a water temperature of around +28°C.

Because it uses top-quality contacts and shock-proof, heat-resistant borosilicate glass (safety glass), JUWEL adjustable heaters meet the highest standards in both function and safety and, as you would expect, are TÜV/GS certified.

In all Rio, Vision, Trigon, Lido and Primo aquariums, the heaters are placed out of sight in the filter casing and are perfectly integrated in the water circulation of the Bioflow filter system.

This ensures an even, efficient distribution of heat through your