Radiator coolant & Anti freeze HS code:382000 Packing: 500ml iron can , 24pcs/carton 1000ml iron , 12pcs/carton, 1000ml plastic bottle, 12pcs/carton 2000ml plastic bottle, 6pcs/carton, 4000ml plastic bottle, 4pcs/carton The coolant and anti freeze protects the cooling system against both freezing and boiling and usually consists of water containing various additves that reduce corrosion and improve the efficiency of the coolant.