Tube Holder Kit, Quad Variable, 6 x 70mm Back Catalog number: 800231 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended F-PRO-1218 Universal Tube Holder System - Instruction Manual Price on request 811-9975-50 Sorbent Tube, XAD-2, 8X110, 400/200, 50/BX Price on request 200504 Tubing, 1/8" ID x 1/16" W, Clear PVC, (10 ft) Price on request