APRIL RV COOL is a premium quality plumbing antifreeze perfect for winterizing the plastic piping found in recreational vehicles, boats, summer homes, septic systems and swimming pool filtration and heating systems. It protects plumbing to -50 °C, is non-corrosive and non-polluting. Freezing of this product is normal and will not damage plumbing. This product should not be used as a heat transfer fluid or as an antifreeze for internal combustion engines.
