Tube Holder Adapter for 1/2" Ends Back Catalog number: 800139 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended F-PRO-1218 Universal Tube Holder System - Instruction Manual Price on request 811-9975-50 Sorbent Tube, XAD-2, 8X110, 400/200, 50/BX Price on request 200102 Tube Holder Housing, 6x70mm, 1/2" OD, S225 Price on request