U-Tube replacement for P/N 800143 Back Catalog number: 200157 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800135 Tube Holder Collar Clip, for 1/2" OD, 3/8" ID Tubi Price on request 811-9984-50 Sorbent Tube, Porapak-R 6X70, 70/35, 50/BX Price on request 800064 Tube Holder Housing End, 5/8", for 7-10mm Price on request