MultiTest: Marine ph & Alkalinity features a unique dye that has a pronounced color change between 8.0 and 8.3, making it the easiest kit on the market to read in that critical range. Alkalinity may be read from the same sample in 0.5 meq/L increments

Specifications: Performs about 75 tests each of both pH and Alkalinity. The alkalinity test is a titration method test.

Size: 75 pH tests, 75 alkalinity tests.