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WTR Feature
5 to 10 Minute Working Time
Pentair 271168
Pentair 521342Z
Contoured cleaning head design
AquaChek Pro Total Hardness Test Strips - 25 Strips speck-s90-pool-pumps WTR FeatureAquaChek Pro Total Hardness Test Strips 25 Strips AquaChek's Total Hardness test strips measure calcium and magnesium, the two minerals that primarily make up hardness in water, up to 1000 ppm. High hardness contributes to scale formation and cloudy water. Low hardness can leave water aggressive and corrosive. Maintain appropriate levels of hardness to prevent the water from becoming corrosive or scale forming. AquaChek Pro Total Hardness Test: Low
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