Tube Holder Housing End, 5/8", for 1/4" OD, Open E Back Catalog number: 800071 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800261 Single Tube Holder Kit, 7-10 x 175mm Price on request 811-9988-10 Sorbent Tube, Chromosorb-106, 10X150, 600/300, 10/ Price on request 800063-10 Tube Holder Housing End, 1/2" for 5mm OD (Packg of Price on request