Captain O-Ring 521147 ten-pack gaskets for reliable replacements
Captain O-Ring 521147 compatibility with IntelliChlor IC15/IC20/IC40/IC60
Captain O-Ring iChlor salt chlorine generator seal for durable performance
Captain O-Ring cell union fitting seal for tight connections
Captain O-Ring 520595 compatibility seal for end fittings
Captain O-Ring 520670 kit plug seal for cleaning and maintenance
Captain O-Ring OEM-spec synthetic rubber for long-lasting sealing
Captain O-Ring USA-made replacement reliability

Captain O-Ring

Captain O-Ring 521147 Gasket O-Rings – 10 Pack for Pentair IntelliChlor IC15/IC20/IC40/IC60 & iChlor

High-performance patio lawn and garden made for confident daily results

$15.32

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Premium patio lawn and garden quality selected for United States (USA) customers.

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Why customers choose Cera Garden

Reliable gasket replacements for your IntelliChlor and iChlor systems

When a seal begins to show wear, a ready-to-install replacement can help you maintain steady performance without unnecessary downtime. The Captain O-Ring 521147 ten-pack is molded from OEM-spec synthetic rubber, balancing flexible grip with durable resilience. This combination supports a dependable seal that stands up to the demands of saltwater environments, while remaining easy to handle during routine service.

Designed to work with Pentair IntelliChlor IC15, IC20, IC40, IC60, and iCHLOR Salt Chlorine Generators, these o-rings seal the Cell Union Fittings on both ends of the system. They are also part of the 520670 cleaning/washing kit plug, creating a complete maintenance loop that helps keep connections clean and corrosion-free over time.

What you may notice in everyday use

  • Long-lasting material with a snug fit that helps reduce incidental leaks during operation.
  • Consistent sealing at end fittings may support smoother chlorine generation and system uptime.
  • Value-packed 10-pack lets you replace worn seals together or store spares for future maintenance.
  • USA-made, warranty-backed product from Captain O-Ring, manufactured to align with OEM specifications.

In real-world maintenance scenarios, keeping a spare set on hand can simplify seasonal servicing, quick swaps after inspections, or proactive replacement when you notice dampness around fittings. While results can vary with system age and conditions, the synthetic rubber composition and precise molding are designed to deliver durable performance over time.

Package details and compatibility

  • O-Ring Part Number: 521147 (10 Pack)
  • Compatibility: Pentair IntelliChlor IC15, IC20, IC40, IC60 and iCHLOR Salt Chlorine Generators
  • Seals the Cell Union Fittings (P/N 520595) on each end of the system
  • Included as part of the 520670 cleaning/washing kit plug
  • Manufactured and warrantied by Captain O-Ring LLC; proudly assembled in the USA

FAQ

Q: What models are compatible with Captain O-Ring 521147?

A: Compatible with Pentair IntelliChlor IC15, IC20, IC40, IC60 and iChlor salt chlorine generators.

Q: What does the 10-pack include and where is it made?

A: A ten-pack of OEM-spec o-rings, manufactured and warranted by Captain O-Ring LLC in the USA.

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