Sorbent Tube, Silica (Spec Clean), 7X110, 50/BX Back Catalog number: 811-9970-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800066 Tube Holder Collar Clip, for 1/4" OD, 1/8" ID Tubi Price on request 811-9973-50 Sorbent Tube, XAD-2, 8X110, 100/50, 50/BX Price on request 800253 Single Variable Flow Kit, 6 x 70mm (Standard Charc Price on request