Walter Stern Large Rubber Bulbs

Walter Stern Large Rubber Bulbs. Large size allows easy access for dispensing onto small sampling cups or test tubes. The small size conforms to current ASTM standards for rigidity of sample containers and rigidity of pipette tips. The color coding allows the user to easily identify the size of the sample as well as the character of the sample which is helpful in sorting out false positives. The color change ensures that only one set of bulbs will be needed for the same size sample. Small size s