High Quality Water Filter for pressure washer 3/4 Female thread and 3/4 Male Thread
because most pressure washer has the water in thread as 3/4 Male Thread on pressure washer.
As long as your pressure washer water inlet is 3/4 Male Thread or Female Thread, then you can use this water filter.
but if your pressure washer is not with 3/4 thread, then it doesn't fit.
This Water filter can also be used on water hose.
here are some photos for your reference