Tube Holder Collar Clip, for 1/4" OD, 1/8" ID Tubi Back Catalog number: 800066 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9988-10 Sorbent Tube, Chromosorb-106, 10X150, 600/300, 10/ Price on request 800149 Single Tube Holder Kit, 6 x 70mm (Standard Charcoa Price on request 200157 U-Tube replacement for P/N 800143 Price on request