Hayward Co2 Injector Fitting (CAX-20152) pentairpool Waterway round weir assembly

Waterway round weir assembly

and more dependable equipment control

Part of a best-selling family with strong related-parts support

Helps reduce effort when opening and closing the cover

Bearing shaft assemblies support smooth mechanical operation

Hayward Co2 Injector Fitting (CAX-20152) pentairpool Waterway round weir assemblyThe Hayward CO2 injector fitting is designed for compatible chemical control applications where carbon dioxide delivery into the water line is needed. An injector fitting is useful because it helps introduce CO2 into the system in a controlled way, supporting pH management strategies used with compatible automation or chemical control equipment. This replacement is especially useful when the original fitting is cracked, leaking, damaged, or clogged.