I am sorry to write another one-star review, but just like other people mentioned, the adapter I got did not fit Sun Joe SPX pressure washer. What a mix-up! There are some good reviews for this adapter, I assume someone else got the right one. Accidentally, I found that Gilmour Model #0776, Item # 807764-1001, UPC 0034411001080, works perfectly. I picked it in a local hardware store for $5.99. Now, onto a long story you do not need to read. You are probably familiar with plumber's tape that people use to seal up threaded connections in plumbing. In order for such connections to seal well, the threads are design to taper: the nut can only go a few turns before the threads grow in diameter so much that the nut gets stuck. It simply cannot go any further, even though there may be a few turns left of the tread. Contrast this with a straight thread (a bolt or a threaded rod), where the nut can go on as long as there are threads made for it. In plumbing, both thread types are used. The first kind is to be sealed with plumber's tape (pipe dope, wick), while the second kind is to be sealed with a washer between the two connecting parts. (Quiz: which type is the garden hose thread?) Sun Joe SPX pressure washers use straight threaded inlets. While you may try using plumber's tape on straight threads with variable degree of success (ever put plumber's tape over a shower arm to seal a shower head? I did), Sun Joe flattened the top and bottom of the inlet and made this impossible even in theory. One cannot use plumber's tape to make an ill fitting connector fit better. I do not know why they simply did not make the inlet compatible with the garden hose thread: would be so much easier to connect to a garden hose. But the way things are, one needs a special adapter to go from the pressure washer inlet to a garden hose. Pressure washer side of this adapter needs to be a female 3/4" National Pipe Straight thread (3/4" FNPS), while the other side is female 3/4" Garden Hose thread (3/4" FGH). This adapter needs to swivel, that is one side of this adapter needs to turn independently of the other. So we are talking 3/4" FNPS - 3/4 FGH swiveling adapter. Armed with this knowledge, you'd think it's easy to find the right adapter. it's not. For one, such adapter is uncommon. Secondly, it may be mislabeled. For example, the Gilmour model above is labeled as 3/4" NPT - 3/4" NH. Does this mean 3/4 inch National Pipe Thread - 3/4 inch National Hose? I understand the hose side, but shouldn't the pipe side be 3/4" NPS, that is 3/4" National Pipe Straight thread? Doesn't NPT stand for National Pipe Tapered thread? If I were looking at this adapter online, I would think it was a wrong kind and would not buy it.
