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$12.50

Refill of reagent 2 from the Calcium Hardness Detection Kit.

$15.50

Replacement for reagent 3 of the Calcium Hardness Detection Kit.

$9.95

200ppm Calcium standard in ultrapure water (30mL) to calibrate your tests or test old reagents.

$8.80

Replacement viewing tube for the Calcium Hardness Detection Kit.

$175.00

A complete test kit for fresh water pools. Everything you need in one box.

$45.00

Water with low calcium can destroy pool surfaces. Use this kit to monitor calcium levels.