pH-Fix is a high quality, color-fixed pH test strip. It prevents fingers from coming in contact with sample and increases safety of operation. To prevent bleeding, the ph-indicator is chemically bound to the cellulose fiber. MN921 is available in standard 0-14 range as well as many special ranges.
The number of color strips vary from 1 to 4 depending on the range.
Below are the available bulk discount rates for each individual item when you purchase a certain amount