Sundance® / Jacuzzi® Temp Sensor O-Ring – part #6540‑228 – Hot Tub Things Skip to content

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  • OEM temperature sensor replacement O‑ring designed for Sundance® and Jacuzzi® spa systems

  • Fits all temperature sensors produced from 2002 onward (models 6600‑166, 6600‑167, 6600‑181, 6600‑751)

  • Made of EDPM material with a Teflon coating (0.662 in inner diameter × 0.210 in thickness) for a precise, moisture‑resistant seal

  • Ensures accurate temperature readings and helps prevent leaks around sensor housing

  • Compact, single‑unit design for easy installation or replacement

  • Extends sensor life and maintains reliable spa temperature control