Walmart offers the Prestone Antifreeze & Coolant Tester for $3.97. You’d pay around double elsewhere. Choose pickup or spend $35 to avoid the $6.99 shipping charge. Buy Now at Walmart
Features
Compatible with all ethylene and glycol coolants, including Dex-Cool and 5/150 Extended Life Checks antifreeze/anti-boil protection levels Allows visual inspection for rust and sediment
