This Barnstead Thermolyne S45725 Cellgro Slow Speed 5 Position Magnetic Stirrer has been tested and is guaranteed to be fully functional. This item came from a local lab that had surplus inventory. Stirrer shows some aesthetic signs of normal use. We urge customers to view all photos as they show overall condition, included accessories and functionality. Please feel free to contact us with any questions. *Stirrer bars not included Thermolyne S45725 Cellgro Slow Speed Stirrer The Thermolyne S45725 Cellgro Slow Speed Stirrer is specifically designed for applications that require slow, gentle, and controlled stirring. It is ideal for growing anchorage-dependent cells on microcarriers and also supports traditional suspension methods. This stirrer promotes optimal cell growth by maintaining consistent and precise motion throughout the process. Specifications 5 x 1000mL vessel capacity Speed range: 1 to 100 rpm Operating temp range: -20C to +60C