These Alconox Alcotabs critical cleaning detergent tablets are packaged in a 100 count bottle, and are effervescent. They provide maximum cleaning in glassware washers and syphon pipette washers to clean pipettes, tubes, and all other types of glassware. They have slow release bubble action, and are free rinsing, providing reliable results with no interfering residues. They are USDA authorized. pH: 6.5. Per each; . Alconox #: 1500.