Bestway Costco Pool vacuum connection question


May 16, 2020
I have a Costco Bestway 22x12x4 Pool, similar to the 17x9x4.
It did not come with a vaccuum, so I want to connect one but there is no adapter from the skimmer (Ports B ) where I can connect the vacuum hose directly; I am not sure which part I need to buy or what is called in order to attach a vacuum hose.

Does anyone have any experience with this?

Thanks in advance for your assistance.