Infuse/withdraw syringe pumps. Accommodates 2 syringes. The Legato 210 supports infuse only, withdraw only, infuse/withdraw, withdraw/infuse and continuous mode. User definable flow rates with selectable target volume or time values to control the total infusion volume. The Legato 210P programmable models allows user defined configurations/programs of up to 800 steps. Up to 40 programs of 20 steps each step can be stored in memory.