Sorbent Tube, Microlite, 8X110, 500mg, 50/BX Back Catalog number: 811-9964-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800134 Tube Holder Collar Clip, for 7/16" OD, 5/16" ID Tu Price on request 800063-10 Tube Holder Housing End, 1/2" for 5mm OD (Packg of Price on request 800075 Tube Holder Quad Variable Flow, only Price on request