Highlights: Pool test kit contains 1/2 ounce bottle of oto for chlorine test and 1/2 ounce bottle of phenol red indicator solution for ph test. Easy to read test block. Comes in unbreakable storage case with instructions and color chart. 2-way pool test kit. 1/2 oz. oto and 1/2 oz. phenol red. Carded.
- Test kit
- Two way OTO, total Cl and pH