Rain X Car Wash Concentrate - 100 Fl Oz. High-Foaming, Biodegradable Formula

Rain X Car Wash Concentrate - 100 Fl Oz. High-Foaming, Biodegradable Formula. Rain X Car Wash Concentrate - 100 Fl Oz. Why Choose Rain X Car Wash Concentrate?. This professional-grade car wash concentrate is designed for people who take pride in their vehicles.