The filter is 3/4 Female, the bushing is 3/4M x 1/2F. One of the camlocks is 1/2M the other 1/2F and I just use a nipple, but that's just because I had a female one, they make males too.
No, my filter has a thing on the top(bottom in the picture) you turn from "Filter" to "Off" to "Bypass"...