Sorbent Tube, XAD-7, 6X70, 60/30, 50/BX Back Catalog number: 811-9980-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800134 Tube Holder Collar Clip, for 7/16" OD, 5/16" ID Tu Price on request 800232 Tube Holder Kit, Deluxe (Single, Dual, Triple & Qu Price on request 800251 Tube Holder Kit, Dual Variable Manifold (Includes Price on request