U-Tube replacement for P/N 800143 Back Catalog number: 200157 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 124SA Sensidyne Gas Detector Tubes, Toluene (10-500 ppm), pk/10 Price on request 811-9979-50 Sorbent Tube, XAD-7, 6X110, 100/50, 50/BX Price on request 800238 Tube Holder O-Ring Kit Price on request