New sink strainer tailpiece washer, flat rubber or flanged

[Djarchow]

I am about to install a new Kohler Duostrainer sink strainer in a bar sink. The strainer came with a flat rubber washer for the tailpiece. The Oatey P trap instruction say to use a flanged washer for the included Oatey tailpiece but doesn't include one. Is the flanged washer the better choice?

Thanks for any help!

 

[Jeff H Young]

use what the strainer came with . Oatey has nothing to do with it

 

[Sponsor]

 

[Djarchow]

Jeff, thanks for the reply. I appreciate it.