Tube Holder Adapter for 1/2" Ends Back Catalog number: 800139 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800165 Sorbent tube adapter nipple for Dual manifold High Price on request 7013601 TUBE TIP CUTTER Price on request 800231 Tube Holder Kit, Quad Variable, 6 x 70mm Price on request