Rectangular Flexible Waveguide 24 inch

This is a Microwave Engineering TDFT 14-4-A-24-N Rectangular Flexible Waveguide 24

This unit came from a working environment but has not been tested
The number is extremly faded but appaes to read TDFT 14-4-A-24-N.
Other numbers printed are: A4530 & 87864.
***MPN TDFT 14-4-A-24-N
***OEM Microwave Engineering
***SKU*** 31033