Castle® Rad- Flo™ assists in cleaning cooling systems. It attacks and loosens caked-on rust and grime that tends to stick to the radiator.
1. Turn car heater to high.
Protect from freezing
When Handling this product wear glove and eye protection. This is a high pH product.
Use the convenient Contact form to email your questions or comments, or call us at:
U.S. customers, please visit the Castle U.S. Website,
or call 1-800-876-0222.