Make sure that your chlorine levels are correct in your sanitation sink with these Chlorine Test Strips from Krowne. With the simple dipping of one of these test strips you can visually read the chlorine levels within the tub by using the color-coded chart included with each bottle. This product allows the user to quickly and easily analyze the acidity within the dishwashing sink and the ratio of chemical to water that needs to be met. - Volume 100 test strips - Sold per each