Tube Holder Collar Clip, for 1/2" OD, 3/8" ID Tubing Back Catalog number: 800135 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 400253 Tube Holder, Clear Storage Box Price on request 200504 Tubing, 1/8" ID x 1/16" W, Clear PVC, (10 ft) Price on request 811-9989-20 Sorbent Tube, Beaded Carbon, 6X70, 140/70, 20/BX Price on request