-1) standard: ul 797 ANSI C80.3 -2) ALL SIZE AVAILABLE: 1/2''-4" Our EMT is manufactured from ... '', 1-1/2'', 2'', 2-1/2", 3", 4".3) all sizes are furnished in the length of 10" usually. The ... widely used under poor condition. EMT tube-1/2"-4" all size available