Needed to use the old screw-in head because the new one was 1/8 mm smaller and did not fit, once we changed the piece to the old one so far it is working.
I bought this sprayer to replace the broken one in my dishwasher. This one was actually an upgrade, as it has nozzles at both ends instead of at just one end. The dishes seem to be getting clean just fine. It was only a few minutes to install where the old one used to be.