EZ Flex Flexible ENT Electrical Nonmetallic Tubing is a high performance low cost alternative to electrical metallic tubing. EZ Flex not only costs less than metal tubing, but installation time is dramatically reduced, saving expensive labor cost. Since the corrugated design allows bending by hand, it eliminates the need for bending equipment and/or special tools. Reduced inner surface area cuts down on drag so that wire pulling is accomplished easier and faster. EZ Flex is used in circuits of 600 volts or less. The minimum installation temperature is -4°F (-20°C) and maximum ambient temperature is 122°F (50°C).