BioFROST Eco is a concentrated, biobased, USP Grade propylene glycol formulated to safely provide optimum heat transfer, freeze protection and corrosion protection. Designed to be diluted with DI or RO water 30%-70%, the fluid contains an orange dye for leak detection.
BioFROST ECO is formulated from USP Grade biobased PG which is NSF registered for incidental food contact. Effective as an antifreeze for fire hydrants. Add 1 to 3 gallons down the hydrant barrel after removing all water with a pump to keep hydrant internals from freezing shut.