System Sensor DST1 Metal Sampling Tube for DNRE and D2E, Duct Width up to 1'

SYSTEM SENSOR ld4s smoke detector Sampling Tube, 23 1/4 in.

System Sensor DST1 Metal Sampling Tube 12" Duct Smoke Detection

System Sensor Dst1.5 Sampling Tube,Length 18 In

System Sensor DST1.5 Metal Sampling Tube for DNRE and D2E, Duct Widths 1' to 2'

System Sensor DST1.5 Foot Sampling Tube

System Sensor DST3 Sampling Tube Smoke Detector

System Sensor Dst3 Sampling Tube, Smoke Detector, Metal, Connects To Smoke