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$9.46

Make sure you are performing the CYA test correctly with this water sample (30mL) containing 50 ppm CYA.

$9.46

A carefully prepared water sample (30mL) at pH 7.2 for calibrating tests.

$9.46

100ppm Total Alkalinity standard (30mL) will help you know if you are performing the TA test correctly.

$9.46

A carefully prepared water sample (30mL) with 4000ppm of Salt for ensuring the Salt Detection Test reagents are working correctly.