Sorbent Tube, Silica Gel, 6X70, 100/50, 50/BX Back Catalog number: 811-9966-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9964-50 Sorbent Tube, Microlite, 8X110, 500mg, 50/BX Price on request 811-9978-20 Sorbent Tube, XAD-2, 8X110, 450/225, 20/BX Price on request 800063-10 Tube Holder Housing End, 1/2" for 5mm OD (Packg of Price on request