Overall these are decent units, They are chromed brass so they are soft. Be sure to use a good wrench if you dont want to muck up the body. This can be a little tricky to install in certain areas as the wrench contact area is thin and hard to get to at certain angles. One unit has a chatter as the gas goes by the check ball but still seals fine.

Took the "end plug" out of my 2 way distributor and replaced it with this. Now I have a 3 way!