Sorbent Tube, XAD-2, 8X110, 100/50, 50/BX Back Catalog number: 811-9973-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended F-PRO-1218 Universal Tube Holder System - Instruction Manual Price on request 800261 Single Tube Holder Kit, 7-10 x 175mm Price on request 200486 Tube Holder Tubing, 1/4" ID x 1/16" W (10 ft) Price on request