Replaced an old aluminum sink siphon, which had a crack.
The installation was very easy, with the siphon being incredibly flexible, which allowed me to position it in a way that it doesn't obstruct the drawer under the sink from closing. Everything is fine.

Very good especially, IF we change the O/H pipe with a piece (10 cm length) of PVC Φ32 in case the waiting time is equivalent, or even longer, using a similar contraction again from PVC (which can be glued with its own glue).