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 811-9962-50 Sorbent Tube, Chromosorb-102, 8X110, 100/50, 50/BX Price on request 801935 Charcoal Tube, Coconut Shell, Standard, 50/100mg, Price on request 811-9982-50 Sorbent Tube, Porapak-P, 6X110, 100/50, 50/BX Price on request