It's not a third function; I have a diverter valve and the hose ends are two female on the loader and two males on the grapple/snowplow. Both rear remotes are two female at the valve also.
Usually loader mounted attachments that require a hydraulic connection have a male and a female connector to keep them from getting switched. When the attachment is not in use you can hook the hoses together to keep the ends from getting dirty.
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