The sera internal filters F are based on the well-established sera submersible pumps. They are equipped with a large filter sponge and combine the advantages of an internal filter with those of a flow pump. The sponge prevents smaller living beings (e.g., young fish) from being sucked into the pump. The sera internal filters F are ideally suited to run the sera CO₂ reactor.
They can easily be attached to the aquarium glass due to their sucker holders.

Technical Data:
F 400 adj.:maximum 400 l/h (106 gal./h), maximum Head Pressure 70 cm (28 in.), 220 - 240 V, 50 Hz, 5 W
F 700 adj.:maximum 650 l/h (171 gal./h), maximum Head Pressure 95 cm (37 in.), 220 - 240 V, 50 Hz, 5 W
F 400 adj.:maximum 1200 l/h (317 gal./h), maximum Head Pressure 145 cm (57 in.), 220 - 240 V, 50 Hz, 15 W