[amazon.com](https://npw.clicorice.ca/links/l7G29C) has the Prestone AF-KIT Flush ‘N Fill Kit for **$3.44** with free shipping on orders over $25 or free with Prime. [Walmart.com](https://npw.clicorice.ca/links/bhIfXb) has it for the same price with free in-store pickup.
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