The BVM UAT has a nipple with a retaining nut and is not a Festo push in style.

You can use 6mm Festo tubing from the UAT to the pump. The pump comes with a small portion of 4mm tubing. Just cut the 4mm tubing about 1/8" longer thant the end of the nipple and leave it there, then push your 6mm tubing over it and safety wire it. This was a tip from Eric. I thought this was a bit odd at first but works very well with no adapter.

Or you can use a 6mm to 4 mm adapter between the UAT and the pump.

You will need to buy 6mm tubing. Use a soldering iron to burn the tubing to remove all tubing from nipples. Stretch the tubing with needle nose pliers to put it on.

Greg