This fits your .

installed under a 1-1/4" sink tail piece using a slip connection sized to match the tail pipe. The 90 Degree part of the assembly is then screwed to the U-Bend and directed toward the rest of the 1-1/2" PVC white DWV drainage line. The U Bend is provided with an extension reducing the need for extra piping.

Canplas 193221B Patter P-Trap 1 1/4 x 1 1/2-Inch - B00PCR9FH0