AquaCal AutoPilot Cell Cord 24ft (952 24) lightingbulbs O rings like these are useful O rings like these are useful because they help maintain cleaner seals at serviceable plumbing joints This type of part is especially useful for technicians or owners who regularly service Sta Rite or Pentair System 3 equipment and want a more reliable way to engage the original fastener or socket geometry This 24 foot version is especially useful when the original cord is damaged or when the system layout requires additional reach without forcing a strained or awkward connection A longer cord is useful because it gives more flexibility at the equipment pad and helps accommodate installations where standard cable length may not be enough