Gator GTSA-UTL203008 ATA TSA Molded Utility Case; 20x30x8 Inch. TSA Series ATA Molded Polyethylene Utility Case; 20"x30"x8". Gator is the leading manufacturer of case solutions for the music and pro audio industries. They offer everything from covers, bags, lightweight cases, plastic cases, roto molded cases and ATA and Tour cases for guitars, amps, keyboards, band, percussion, microphone, racks, mixers, speakers, LCD/Plasma screens, utility, DJ, lighting, projector, laptop, digital recording and more.