Made from 304 stainless steel. 

When used with the female QD these quick disconnect seal up very well in either flow direction, without a lot of work in connecting them. Does not work in conjunction with any of our plastic or brass quick disconnects. These feature a 1/2" Male National Pipe Thread on the outter ends for easy connectivity to almost anything. 

The quick disconnect will hold pressure for typical brewing applications when moving liquids at 60psi or less, however, we don't know the rating of these for those looking to use these in other applications.