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 800135 Tube Holder Collar Clip, for 1/2" OD, 3/8" ID Tubi Price on request 200157 U-Tube replacement for P/N 800143 Price on request 811-9973-50 Sorbent Tube, XAD-2, 8X110, 100/50, 50/BX Price on request