Seachem Laboratories pH Alert 6 Month Monitor 1ea/1 Card, 1.5 In X 2.5 in

$8.99

pH Alert is a unique color device designed to be placed in the aquarium or filter and monitor pH continuously. A sensor changes color reversibly from yellow to orange to red alerting you to shifts in pH levels between 5.4 and 8.0. Freshwater use only.

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