Alkazone Ph Test Drops for Water Ph with Color Chart
LIQUID PH TEST KIT FOR WATER WITH COLOR CHART. TEST RANGE 3.5 TO 10.5.   NOTE: THESE BOTTLES DO NOT COME COMPLETELY  FULL approximately 1/3 to 1/2 full. THERE IS PER BHL BOTTLE ENOUGH TESTING LIQUID TO  DO APPROX  100 TESTS.