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Rola Chem ORP Probe [Digital Analog Ctrl Sys Heavy Duty 8ft] (550136) haywardpool The DEX2422Z2 is a practical The DEX2422Z2 is a practical service part for compatible Hayward SwimClear filters that need renewed lid sealing and cleaner long term performance Useful when replacing a worn or damaged original cable Rola Chem part 550136 for accurate replacement matching it helps monitor oxidation reduction potential so automated chemical controllers can respond to sanitizer demand and support consistent water treatment performance
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