Seachem Laboratories pH Alert 6 Month Monitor 1ea/1 Card, 1.5 In X 2.5 in
$6.23
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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. Sold in Qty of: 1
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$6.67
$5.84
(-$0.83)
$5.84
$6.23
(+$0.39)