Sorbent Tube, Microlite, 8X110, 500mg, 50/BX Back Catalog number: 811-9964-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800066-10 Tube Holder Collar Clip, for 1/4" OD, 1/8" ID Tubing (Packg of 10) Price on request 800134 Tube Holder Collar Clip, for 7/16" OD, 5/16" ID Tubing Price on request 800138 Tube Holder Adapter for 5/8" Ends Price on request