Self contained bottle stirring system ideal for simple mixing processes. Stirrer shaft can be adjusted to the optimal position in either a 500 or 1000 mL DURAN® GL 45 bottles. Use with standard magnetic stirrers up to 500 rpm. Significantly improved mixing performance compared to standard magnetic stir bars. Two GL 14 port connector cap is compatible with the modeular DURAN® connection systems; tubing with 1.6 mm to 6.0 mm bores can be used to add or remove liquid or gas. Fully autoclavable. Parts in contact with media conform to FDA requirements. Supplied with or without bottle.