Return Unique Text Values Without Advanced Filter

I have a list of Window sizes and types in Range B4:B:43. The descriptions repeat because in Column K I am listing a location for each window in a house.

Example:
B K
3050 SH 1/1 Dining Room
3050 SH 1/1 Kitchen
2030 Fixed Foyer
2030 Fixed Living Room

In the Same sheet Starting on B:45 I want a list of only Unique Window Types:

B:45 and Down:
3050 SH 1/1
2030 Fixed

I'd like this to automatically appear after populating the first list. I used an advanced filter the first time and it worked, but it is not reliable and sometimes returns duplicate values or give me an error message. Plus once again having it happen automatically as the list will change each time I access the sheet would be great.