For my co2 closed transfer setup, I was expecting to be able to screw those 2 items together (male to female): https://www.ontariobeerkegs.com/Stainless_Steel_Flared_Union_1_4_MFL_x_1_4_MFL_p/ss-1-4-m-mfl-x-1-4-m-mfl.htm https://www.ontariobeerkegs.com/ProductDetails.asp?ProductCode=ss-swivel-nut-5-16 But the adapter (1/4 MFL to 1/4 MFL) is too big to fit the 1/4 FFL to barb. Why? Shouldn't 1/4 MFL fit properly 1/4 FFL? Do I miss something here? Thanks in advance.

I think I oxidized my whole keg. I was attempting a closed transfer but the beer stopped going into the keg so I decided to change the tube but totally forgot about the air in the tube. So when I started to transfer again, bubbles went through the keg. I bled the keg many times right away but I'm not sure how much it helped. Did you ever have such an experience? How did it turn out?