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Small above-ground pools
Severe metal staining often returns if not fully treated
It works well with sand filters
or servicing
and debris removal in medium to large pools
Polaris PB4SQ OEM O-Ring & Seal Kit SEO Added Small above-ground poolsThe Polaris PB4SQ Booster Pump O ring Set with Seal (R0734300) is a genuine OEM service kit designed to restore proper sealing, internal pressure, and leak free operation in Polaris PB4SQ booster pumps. This kit includes the essential O rings and shaft seal required to protect the pumps internal components and maintain reliable performance when powering pressure side pool cleaners. Booster pumps operate in a demanding environment where constant water
