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 800230 Triple Variable Tube Holder Kit, 6 x 70mm Price on request 811-9988-10 Sorbent Tube, Chromosorb-106, 10X150, 600/300, 10/ Price on request 800258 Single Variable Flow Kit, 7 x 130mm [Dräger Long Price on request