1/2" Female quick disconnect with 1/2" barb. As the name suggests, Quick Disconnects make switching lines quick and effortless. Quick disconnects seal up very well without a lot of work in connecting them. Holds pressure for typical brewing applications when moving liquids at 60psi or less. Fits 1/2" tubing. Gasket temperature range is -40° to 250° F. Open port. All stainless construction.