You mean getting the right kind? I guess there are several brands and they aren't compatible. PITA.
That's one way of putting it. He ordered one set from ebay and they didn't fit, sent them back today. Then he was guided to this site:
https://www.discounthydraulichose.com/mm5/thread_guide.pdf
Finally was able to match up the connectors. It sux not having a parts manual for the thing. He contacted somebody who worked for the company who made the bucket but they wouldn't help him. Something about a manufacturers agreement, blah blah blah. they wanted him to take it to a dealer. Ummmmm no, not in this lifetime.