Sorbent Tube, XAD-2, 8X110, 150/75, 50/BX Back Catalog number: 811-9974-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800263 Single Tube Holder Kit, 5 x 150mm [Kitagawa TWA Tubes] Price on request 800063-10 Tube Holder Housing End, 1/2" for 5mm OD (Packg of 10) Price on request 800063 Tube Holder Housing End, 1/2" for 5mm OD Price on request