The strength of these flasks has been increased appreciably through machine-blown bodies to which are sealed heavy-beaded, heavy-tubing necks, tooled for snap cap fit. The graduation line is sharp and permanent; large white block letters make the inscription easy to read. The 1 mL and 2 mL sizes are test tube shaped. The 10 mL through 2000 mL sizes are supplied with snap caps.br>
Cat. Nos. 5580-1 and 5580-2 have no snap caps for 1 mL and 2 mL sizes.
For snap caps only, see Cat. No. 7666.
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