For use with sanding tee conversion for small sand pipes:

1/2 inch NPT to 1/4 inch NPT male adapter

The 1-1/4" (1 inch and 1/4 inch pipe thread) female threaded elbow cannot connect to small sand pipes with an outer diameter of 28MM/32MM. This requires the use of this 1-1/4" to 3/8" adapter. After conversion, it can directly connect to a small sand pipe fitting with a 3/8" female thread.