Tube Holder Adapter for 1/2" Ends Back Catalog number: 800139 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800064-10 Tube Holder Housing End, 5/8", for 7-10mm (Packg o Price on request 811-9967-50 Sorbent Tube, Silica Gel, 8X110, 300/150, 50/BX Price on request 800165 Sorbent tube adapter nipple for Dual manifold High Price on request