17072 1/2"X260" TEFLON TAPE ROLL | 0.4 density, 0.003 in thick. Over 50% elongation and chemically inert. Provides a strong tight seal for any threaded joint and permits easy disassembly. Tolerates -400 to 500 deg F. Suitable for use on oxygen systems. Non-toxic and non-flammable. Meets Federal Specification T-27730A.