Brilliant: Forget about a separate heater in the aquarium thanks to this thermo-filter.

A brilliant innovation: Water is drawn in, filtered, heated at the same time, and then returned to the aquarium at just the right temperature. EHEIM has once again succeeded as a pioneer in perfectly implementing this revolutionary idea technically. We are the only ones offering external filters with an integrated heating system (IHS). Currently, there are 5 thermo-filters from the EHEIM professional generation (professional, professional 3, and professional 3e) for aquariums ranging from 120 to 1200 liters. So you get all the advantages of these high-quality filter series along with the convenient thermo function.

Filtering and heating – all in one.

EHEIM thermo external filters – unique worldwide. Clean, circulate, and simultaneously maintain precise temperature: This is only available from EHEIM. The highlights of our professional filter generation.