4WD Wash Chemical RefillThe Foamy Core Four 4WD Cleaning Kit, your ultimate solution for a professional car wash at home. This comprehensive kit includes the four essential products you need to protect your vehicle from the onset of rust and corrasion from mud & salt. Each product is meticulously formulated to deliver outstanding results, protecting your vehicle from the harshest conditions, and prolonging the life of your pride and joy for years to come.