For use in the aquarium or filter sump - Space-saving due to internal water supply- Highly efficient filtration due to high flow through your chosen filter media (sold separately) such as activated carbon (Carbolit), phosphate absorber (antiphos FE), zeolithe, fine filter and so on- Adjustable water flow - Very simple maintenance due to removable filling tube, the filter housing incl. pump can remain in the aquarium for refilling and maintenance- Incl. pump of 12 V safety tension- Flexibly adjustable mounting system (multi reactor L can also be placed upright in the filter sump) New in 2nd generation- Extremely quiet in operation - Low vibration due to a decoupled pump connection - Optimized water flow with adjustable water level, low noiseOnly valid for versions L + M:- Due to the new double-chamber-system two different types of filter media can be used simultaneously - single-chamber-operation is also possible by removing the separating bottom of the reaction chamber multi reactor Gen II S M L Dimensions(l x w x h) mm ~60 x 50 x 325 ~80 x 60 x 390 ~100 x 100 x 465 Gross volume ml ~270 ~540 ~1.200 Filling quantity ml(without sponge) ~150 ~380 ~800 Current consumption ~12 V / 4 W ~12 V / 8 W ~12 V / 14 W Pump power ~200 l/h ~350 l/h ~450 l/h For aquaria ≤ 350 l ≤ 500 l ≤ 800 l Max. glass thickness(for holder) 12 mm 12 mm 12 mm