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Cal Aqua Indicator Refill Solution 60 ml
Cal Aqua Labs

Cal Aqua Labs Indicator Refill Solution 60 ml

$7.99
60 ml. Indicator refill solution for use with CAL AQUA LABS's CO2 checkers. It consists of a premade 4dKH solution containing the appropriate amount of indicator. Easy to use, no mixing required. Simply open cap and fill CO2 checker.