You should probably wait and see what you get. From what others have said there has already been at least one change to the input. Quite a bit of Chinese plumbing is BSP (British Standard Pipe) or metric, so be sure to check carefully. It can also be NPS with a sealing washer. Last I hear the input is now a hose barb. That makes it somewhat universal for worldwide distribution.
This place was noted to have many of the fittings that Everlast has used.
http://mdmetric.com
Long arc, short arc, heliarc and in-the-dark!