Better than the actual items, but not as durable

These flexible parts can be adapted to various conditions in the aquarium. Unlike supplied with the filter inlet and outlet rigid pipes. This could be my MP aquarium does not fit (also a Eheim product!). So Eheim conceded twice. This is not a fine way, belonged to the flexible parts especially in former filters. Due to this customer unfriendly sales strategy a point deduction, even though the article itself would be worth 5 points.
Addendum 10.01.2013:
Meanwhile, the part is somewhere slightly leaking. To set the pump to full power, air is sucked in. The same problem I had already in the previous set.