2x1-1/2x1-1/2 sani tee. PVC Schedule 40 DWV. PVC-DWV (hub x hub x hub). 4 x 1-1/2" Tee is made from 4 x 2 Tee with a 2 x 1-1/2" bushing solvent welded into outlet. 2" x 1-1/2" x 1-1/2"