Burets PYREX brand Rotaflo Dual Plug White Enamel Markingswith Rotaflo Stopcock 25 mL. 12 x 560 mm. Graduation:.10 mL. For plug only see No. 7500-3PO. GP Plug:3. Tolerance:+/-.06 mL. Buret with automatic zero Rotaflo dual stopcock. The dual stopcock helps
