Need to know what it is

There is an area where the brake lines go on the ford bronco that is not the master cylinder. This area is below the windshield washer/radiator reservoir( lower front end right if looking at the front of the vehicle). I described this in an earlier post and got a solution, but not the name of this. It has brass cylindrical 2 inch in diameter and they go into a unit where all the brake lines meet. The things look like brass salt shakers
O O
O O going into the unit... WHAT IS IT CALLED? please...