The check valve is made of plastic, are otherwise U-Pipe and glass diffuser.
The U-pipe ran be carried out in a corner of my Dennerle Nano-Cubes with me.
The diffuser does his job very well, clearly are here and there to see something bigger bubbles, but I was also in a diffuser of Dennerle, the loose three times cost, also.
Otherwise comply with Pipe and non-return valve also their function.
Solely the suction cup could many, bring a little "harder" hose to despair, because the diffuser so easily slip out of this.
Mir is so, however, rather, since I expect that this will be harder with the time that had diffuser as with a Dennerle, in which the suction cup is firmly attached to the diffuser, while trying to solve this by the glass, the diffuser breaks.
