Tube Holder Housing End, 1/2" for 5mm OD Back Catalog number: 800063 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9985-50 Sorbent Tube, Florisil, 6X70, 100/50, 50/BX Price on request 800066-10 Tube Holder Collar Clip, for 1/4" OD, 1/8" ID Tubi Price on request 811-9967-50 Sorbent Tube, Silica Gel, 8X110, 300/150, 50/BX Price on request