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![RonDawson](https://data3.answerbase.com/answerbase/1852/UserFiles/User44682/profileImage44682.jpg?634897245130000000)
Feb 26, 2019 - 08:50 AM
There is no expiration date on the product since it is for agricultural use. Bell labs says that under most circumstances, it will remain effective for 3-4 years. This depends on where it is stored. We always recommend to store it in a cool dry location where it is away from children and pets.
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