- The Louisville Slugger Portable Pitching Screen is a great addition to your training program, and are designed to work with our best selling UPM45 and UPM75 Ultimate Pitching Machines. The net is designed for quick setup and portablility and double as infielders screens when not in use with the UPM45 or UPM75. Bring the screens anywhere with the included carrying back and have protection for the coach while pitching as well as players in the infield during practice. L60115
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