Amazon has 5 Pounds of Citric Acid for only $11.90 shipped for Prime customers. This was a front page deal last time I posted it at $13.50+
Excellent reviews and this stuff is extremely useful. Can be used to clean dishwashers, tea kettles, pipes, preserve food, etc etc.
Lowest price according to the camel.
https://www.amazon.com/dp/B000OZFECU
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