1 1/2" exposed chrome p-trap to 2" ABS - what slip joint?

[BlueGoldfish]

Doing my first sink install... sink has exposed plumbing - and so will use 1.5" chrome p-trap. I have 2" ABS for drain and vent. This seems like such a basic question - but how do I best transition from the 2" sanitee to the 1.5" chrome p-trap. I was hoping for a 2" ABS slipjoint that has 1.5" on the 'slip' side - but they all seem to be 2" on both the glue and slip side. I'd rather not put a 2:1.5 reducer in after the sanitee as then things will stick out a little far from the wall.

Should I be using a 2:2:1.5 sanitee instead of a 2:2:2 and then a 1.5" slip? Seems weird to reduce at the rough opening and not have the full 2" opening available for future snaking...

 

[Mr tee]

You should be using a 2 X 2 X 1 1/2 san tee.

 

[Sponsor]

 

[Reach4]

You want a trap adapter. They come in various varieties.

If you get the santee that Mr Tee suggests, then you would want a 1-1/2 spigot trap adapter.

If your trap adapter has a 2 inch hub side port, you would use a bushing to reduce that to 1-1/2.

A chrome box escutcheon can cover the nut.

 

[BlueGoldfish]

Cool - thanks. I'll swap the sanitee - not glued up yet. My sanitee location already close to front of stud - so I'm not confident a reducer bushing plus 1.5 trap adapter would stay within the escutcheon. Was hoping there was such a thing as a 2:1.5 trap adapter fitting. thanks for the help - this forum is an awesome find!

 

[Tuttles Revenge]

An 1.5" opening is sufficient for snaking a 2" drain.

Depending on your aesthetics the easiest way to make your work look good when its finished is to start with the correct fittings. The 2x1.5" tee is the correct fitting. I prefer to have Only the threads, and not even all of them, of the trap adapter sticking out of the sheetrock / finished wall. In this manner I can still tighten the slip nut and use a flat escutcheon to cover the nut and fitting. They do make deep box flange/eschutcheons if your trap adapter sticks out further. But in certain scenarios they take up too much room on the p-trap.

 

[Reach4]

Unrelated to original post: In looking up stuff, I find 2" Spigot x Slip Joint ABS Trap Adapters (example https://www.supplyhouse.com/Nibco-I014650-2-SPG-x-SJ-ABS-Trap-Adapter-580127). I do not find slip joint 2 inch p-traps. It seems to me that a 2 inch slip joint p-trap could bring the joys of slip joint to things like laundry standpipes or showers for the cases where the trap remains accessible. Thoughts?