Sorbent Tube, Microlite, 6X70, 200mg, 50/BX Back Catalog number: 811-9963-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800231 Tube Holder Kit, Quad Variable, 6 x 70mm Price on request 800232 Tube Holder Kit, Deluxe (Single, Dual, Triple & Qu Price on request 800136-10 Tube Holder Collar Clip, for 5/8" OD, 1/2" ID Tubi Price on request