plug from trailer to truck

hey all, we have switched from a 35 River Canyon 5th wheel to 32QBSS trailer. I currently have the 5th wheel plug in receptacle under rear bumper of truck, found receptacle the standard for 5th wheel. I failed to look at the plug on the heartland 32QBSS which is right now in storage at a campground. we may want to take it out and tow on the road. what do I need to attach to the plug on the 32QBSS to match the receptacle on my truck?
 
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