Inner-Lok(TM) GC Universal Union (5 pk)

These precision Universal Unions are manufactured by a propriety laser machining process. The high quality quartz provides an excellent thermal expansion match with Polymicro Technologies' popular fused silica capillary products. The chemically pristine surface allows for addition of common deactivation chemistries. The universal design of the sealing tapers allow for easy use with common GC columns with OD's from 360-670um. Capillary ends. once properly cleaved, are simply pressed into the tapered ends and an initial seal is formed by the friction fit. A simple thermal cycling of the tubing to 300C completes the sealing process. Use Unions to : Repair broken columns - Connect guard columns - Connect transfer lines. Properties : High quality quartz - Concentric tapered interior bore - Press-fit friction fit - Pristine, deactivated surfaces. Supplied in a pack of 5 unions.