Male Connector Dimensions:

Code  Description
YS16-1/2M 16mm x 1/2″
YS16-3/4M 16mm x 3/4″
YS20-1/2M 20mm x 1/2″
YS20-3/4M 20mm x 3/4″
YS25-3/4M 25mm x 3/4″
 YS25-1M 25mm x 1″