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Blue Finish for Easy Identification Vibrant blue color matches the original design
simplifying monthly filter maintenance
Waterway brand reliability — trusted by spa pros for durable spa unions
helping you maintain clear
rotational massage across the back
Hayward Next Generation Injection Check Valve CAX-3511 for Pool Sanitization Two Pack Tubes Blue Finish for Easy IdentificationHayward Next Generation Injection Check Valve CAX 3511 for Pool Sanitization Intro Meet the Hayward Next Generation Injection Check Valve CAX 3511, a precision component engineered to optimize sanitizer delivery within the HydroRite UVO pool sanitization ecosystem. This updated valve works in concert with chlorine based sanitation to dramatically reduce overall chemical usage and lower total chlorine demand by 50% or more, helping you maintain clear,
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