The FiltoSmart Thermo line of external filters with integrated heaters are perfect for marine and freshwater aquariums. The FiltoSmart Thermo 100 has a compact design with a large filter surface. With the heater integrated into your filter, there is more room for undisrupted beauty in your aquarium. The water flow can easily be adjusted on both the inlet and outlet adapters for the filter. This filter, with its secure and steady base, can be conveniently hidden in an under-cabinet setup. Install the included diffuser and spray bar for uniform surface movement and additional dissolved oxygen for ideal water quality. Utilizing biological and mechanical filtration, this external filter, ensures effective water filtration and optimal living conditions for aquarium inhabitants. This filter also features a carrying handle for simple moving and maintenance. This energy-efficient design includes a self-priming function for easy operation on startup and after cleaning. Includes a shut-off automation with built-in check valve to prevent leakage when cleaning the filter. EasyClick opening mechanism allows simple opening and closing of filter for cleaning and maintenance. Designed using German engineering and manufactured in Italy, this quiet operating filter is supported by an included 3 year warranty.