RT-375-1-X-STK RT-375-2-X-SP RT-375-3/16-X-SP RT-375-3/16-X-SP-SM RT-375-3/16-X-STK RT-375-3/32-X-RS-288-5178 RT-375-3/32-X-SP RT-375-3/32-X-SP (1500FT) RT-375-3/32-X-SP (500) RT-375-3/32-X-SP (1)