Just installed a Moen double shower, I'm having a problem getting handles to match. One handle aiming down and other handle aiming up. How can I get them to the same position when off?

What Moen model is it ?

There are two ways of correcting position of handles:

1. Position the handle in question to the position it should be. Now, unscrew the handle and install it in the direction you want.

Or

2. If handle doesn't fit than you just remove the handle and spin the stem 180 degrees. Reinstall handle. Now, both should be spinning the proper way.

See if that helped / Back to you / Milo