AquaChek Hardness Test Strips
AquaChek Hardness Test Strips
AquaChek Hardness Test Strips
AquaChek Hardness Test Strips

AquaChek Hardness Spa & Pool Test Strips

TB1004
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AquaChek Hardness Test Strips for hot tubs & pools check total calcium + magnesium. Too low causes corrosion & foam. Too high causes scale & cloudiness. 25 tests.

  • Total water hardness
  • Low range (up to 120 ppm)
  • High range (from 250 to 1,000 ppm)

Product Notes: Dip strip, remove, then compare to chart.
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