Tube Holder Housing, 6x70mm, 1/2" OD, S225 (Packg Back Catalog number: 200102-10 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800165 Sorbent tube adapter nipple for Dual manifold High Price on request 800075 Tube Holder Quad Variable Flow, only Price on request 800230 Triple Variable Tube Holder Kit, 6 x 70mm Price on request