Tube Holder Housing End, 1/2" for 6mm OD Back Catalog number: 800062 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9978-20 Sorbent Tube, XAD-2, 8X110, 450/225, 20/BX Price on request 811-9963-50 Sorbent Tube, Microlite, 6X70, 200mg, 50/BX Price on request 800073 Tube Holder Dual Variable Flow, only Price on request