In the specification, it was an item corresponding to hose with inner diameter 4.5 / 5.0 mm, but the fuel horse (inner diameter) of 4.5 mm inside diameter was not included.
To be precise, the secondary side was somehow pushed in.
However, the primary side was obviously harder than the secondary side, it did not enter at all.
Also, the material of the main body was weaker than the secondary side, and as I felt it seemed likely to break when applying force, I managed to warm up the hose or trial and error and put it in somehow. Nevertheless it was not possible to put it in the bottom.
The point was good as the function as a filter seemed to be problematic, but I thought that I would like you to review the explanation about the corresponding diameter of the hose once.