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ProSource Scientific Class A Glass Burets w/PTFE Stopcocks

ProSource Scientific glass burets meet ASTM E-287 Class A specifications for tolerance and are supplied with PTFE stopcocks to eliminate freezing and lubricant contamination and to provide a precision fit within the barrel.
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ProSource Scientific Support Stands

All purpose support stands available with a rectangular cast iron or stamped steel base, or a tripod cast iron base that can stand up to the harshest lab environments.
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Squeeze-O-Matic Automatic Burets with PTFE Stopcock

An economical, portable automatic buret for routine laboratory work and for student use. With straight stopcock outlet. Buret is filled by use of a pressure bulb and the zero mark is set automatically.