Adapters to connect 2.5" dust collection hose to a vacuum for basic shop dust collection.
There are three adapters:
For my setup:
Hose: https://www.amazon.com/gp/product/B0C8MC8G9D/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
The author marked this model as their own original creation.