Sorbent Tube, Silica Gel, 8X110, 300/150, 50/BX Back Catalog number: 811-9967-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800254 Single Variable Flow Kit, 5 x 150mm [Kitagawa TWA Price on request 200102 Tube Holder Housing, 6x70mm, 1/2" OD, S225 Price on request 800075 Tube Holder Quad Variable Flow, only Price on request