The universal funnelcock is designed to fit nearly all shapes and sizes of bottles including the commonly used 2 inch lid diameter wide-month liter bottle.  It is infinitely reusable.  They are are custom made of rugged, thick-walled borosilicate glass and teflon materials specifically for the BLLE procedure.

Only one is needed since they may be easily rinsed between usages.

Note that the utility of the funnelcock has become known to be compromised by extremely high altitudes. Labs with facilities 1500 feet or more above sea level may not be able to use this device effectively.

Return within 90 days if not completely satisfied.

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