Sorbent Tube, Silica Gel, 8X110, 520/360, 50/BX Back Catalog number: 811-9968-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800165-10 Sorbent tube adapter nipple for Dual manifold High Price on request 800261 Single Tube Holder Kit, 7-10 x 175mm Price on request F-PRO-1218 Universal Tube Holder System - Instruction Manual Price on request