The “CR2” Back-Flow prevention check valve is completely corrosion resistant, making it the ultimate solution for protecting your expensive Heat Exchangers from the potential damage of inline Chlorinators while also maintaining a Full-Flow circulation system.
- Proprietary designed Hastelloy Spring
- Glass-Filled Noryl injection molded shaft
- 100% Silicone Gasket and a Clear, serviceable lid
- ½ lb. spring-loaded gate








