Sorbent Tube, Silica Gel, 8X110, 520/360, 50/BX Back Catalog number: 811-9968-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200104 Tube Holder Housing, 5 x 150mm, 1/2", S255 [Kitaga Price on request 800075 Tube Holder Quad Variable Flow, only Price on request 800063-10 Tube Holder Housing End, 1/2" for 5mm OD (Packg of Price on request