Tube Holder Adapter, 3/16" to 1/4" Ends Back Catalog number: 200187 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200505 Tubing, 1/8" ID x 1/16" W, Clear PVC, (3 ft) Price on request 811-9967-50 Sorbent Tube, Silica Gel, 8X110, 300/150, 50/BX Price on request 800251 Tube Holder Kit, Dual Variable Manifold (Includes Price on request