Specs here (PDF)
Here are the dimensions for it:
Question: Do I need to find a way to reduce from 2" to 1 1/2" or there is similar parts that can fit my shower pan and that match the 1 1/2" ABS pipe that I have for the drain ?
After reading the below answers and recommendations and after asking around as well I went to the store and I bought the shower drain and both a reducing coupling and a reducing bushing. Both resulted in nearly the same size of the coupling and none of the fits in the space I have below the floor
Here are some pictures:
-current situation -everything is 1.5" here but the drain needs 2". The problem is that I need to push the trap downward in order to create room for one of the the couplings
Is this an acceptable and functional solution? Does it have any caveats ? The idea is tp put a piece of 1.5" pipe (violet colored in the picture) between the crown of the p trap and the trap itself like below. The yellow pieces will be sized accordingly what you see if just for illustration
Update2: OK here are the result of this evening attempt to make room for a lower trap and bigger seal depth