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Oatey 35271 - Hercules Cryo-Tek Test Strips, 10 Pack
Hercules Cryo-Tek Test Strips simultaneously check the level of propylene glycol and level of corrosion protection. Behold the power of Hercules, products built to last and trusted by plumbers to withstand even the toughest conditions.
Contains 10 color-coded, disposable test strips
Freeze protection levels and corrosion protection levels should be checked annually
Add Cryo-Tek product if freeze protection is inadequate
Add Cryo-Tek Universal Inhibitor if pH is below 85
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