Aluminum Wire Stuffing Tube, 1″ NPT Connection, 1 1/8″ NPT Connection, w/ Washer Aluminum Wire Stuffing Tube. Stuffing tubes are devices used to allow a wire or cable to pass through a wall or bulkhead and protect. 1" NPT Connection. 1 1/8" NPT Screw-in connection. Includes aluminum washer. byJuly 4, 2026
