Hey Melissa
We have a demonstration of that on a youtube video. Around the 14 minute mark
https://www.youtube.com/watch?v=0AhGQ2BfxoA&t=891s
On the delta valve, you will need to remove and discard the square plastic guard. The 3/4″ pipe seal can be used for the tub spout or the shower head. Probably better to be used on the tub spout IMO.
