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 811-9984-50 Sorbent Tube, Porapak-R 6X70, 70/35, 50/BX Price on request 800253 Single Variable Flow Kit, 6 x 70mm (Standard Charc Price on request 200112 Tube Holder Housing, 7-10 x 150mm, 5/8", L255 Price on request