Automatic burettes, acc to Dr. Schilling, class B, short line graduation, with Schellbach blue line

new model, with push button enabling a prcise titration, complete with Polyethylene reservoir, included a stable base. Automatic zero point Pellet type. Amber stain DIFFICO-graduations and inscriptions. soda lime-glass. The burette is filled by thumb or finger pressure. Better than class B accuracy. Delivery time 20 - 100 s, without waiting time Made of Borosilicate glass