How Can I Reduce "Splashiness" in the Kitchen Faucet?
The screen is just one part of an aerator.  There are a few different components to an aerator. It's best to get a new aerator instead of trying to track down all the individual pieces.  It'll be worth the little bit of extra money. To make sure you get the right aerator the first time, I recommend that you bring the old one into the hardware store to match the threads.