SKU: 550049185

Shell HD Phosphate Free Antifreeze/Coolant 50/50 is a phosphate-free, fully formulated antifreeze/coolant (AFC). It is pre-charged with supplemental coolant additives (SCAs) and pre-diluted to a 50/50 premix level with high quality water. It is designed to protect against winter freeze up and minimize the chance of summer boil over.