When used with the male QD these quick disconnect seal up very well in either flow direction, without a lot of work in connecting them. This will work with any of our H503 and H507 series of quick disconnects. However, it 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 ends for easy connectivity to almost anything. The quick disconnect will hold pressure for typical brewing applications when moving liquids at 60psi or less. 1/2″ ID. Gasket temperature range is -40° to 250° F. Open port, does not have shut-off.