Gauge tube extension cable with octal connectors on each end (male and female). To be used with Vacuum Research, Pirani, Thermocouple, Convection and Diaphragm gauge units. Cost is $39.00 + $3.00 per foot with one foot minimum. If cable is to be run through conduit request that a connector be left off one end, a wiring diagram will be provided. Specify type of gauge to be used with when ordering.