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 800230 Triple Variable Tube Holder Kit, 6 x 70mm Price on request 800165-10 Sorbent tube adapter nipple for Dual manifold High Price on request