Ikea vanity plumbing help?

[neeksimons]

Hi im installing my new ikea vanity, they use a special p trap assembly to clear their drawers on their vanity units and the p trap is 1 1/2. My drain in my wall is 1 1/4, what fittings would i need to make my ikea p trap go into my 1 1/4 drain. Theres also an old rusted fitting on the existing drain that i cant remove. It has threads on the end of it. What can i use to make this work?

 

[Breplum]

Fairly likely that the tee is 1.5" so remove the brass trap adapter and then, add a short brass nipple or brass trap adapter.
You will need muscle and leverage, so you might'n want to pull the vanity.

 

[Sponsor]

 

[Jeff H Young]

Breplum nailed it you prep the drain befor cabinet install , I cant see but sounds like you need to get that nut off and clean the male threads. Weve all done it by crawling inside but its way harder