Tube Holder Adapter for 1/2" Ends Back Catalog number: 800139 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9973-50 Sorbent Tube, XAD-2, 8X110, 100/50, 50/BX Price on request 800681-1 Tube Breaker Kit, Black, LFS-113 Price on request 800251 Tube Holder Kit, Dual Variable Manifold (Includes Price on request