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Seachem Alerts Combo Pack, 2 Monitors

Amazon.com Price:  $10.60 (as of 26/03/2022 17:58 PST- Details) & FREE Shipping.

Continuous monitoring for both ammonia and pH in freshwater
Ammonia Alert provides continuous monitoring of free ammonia levels in the freshwater and marine aquaria and lasts up to 1 year
pH alert provides continuous monitoring of pH in the freshwater aquarium lasting up to 6 months

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