Tube Holder O-Ring Kit Back Catalog number: 800238 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 7015377P Tube Tip Breaker, Package of 5 Price on request 811-9967-50 Sorbent Tube, Silica Gel, 8X110, 300/150, 50/BX Price on request 200187 Tube Holder Adapter, 3/16" to 1/4" Ends Price on request