Winterizing Kit Suction Hose

I am getting ready to winterize our camper. It already has the three way brass valve installed, but the siphon hose is missing.

What kind of fitting do I need to connect the siphon hose to the valve? I debated just buying a new kit and using the siphon hose, but if I can find the right fitting I'll pick up a fitting and some hose at Home Depot.


Thanks,

Gary