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 800136 Tube Holder Collar Clip, for 5/8" OD, 1/2" ID Tubi Price on request 811-9977-20 Sorbent Tube, XAD-2, 6X110, 120/60, 20/BX Price on request 800253 Single Variable Flow Kit, 6 x 70mm (Standard Charc Price on request