Tube Holder Triple Variable Flow, only Back Catalog number: 800074 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800261 Single Tube Holder Kit, 7-10 x 175mm Price on request 811-9968-50 Sorbent Tube, Silica Gel, 8X110, 520/360, 50/BX Price on request 800136 Tube Holder Collar Clip, for 5/8" OD, 1/2" ID Tubi Price on request