Pentair | R172009Z | Rainbow 3" Cap O-Ring – Replacement Seal for Chlorinators

In stock
SKU: H-R172009Z
Length: 10 in Width: 5 in Height: 0.5 in
Regular price $7.99
Regular price Sale $10.00 Sale price $7.99

Ensure a watertight seal on your Pentair Rainbow chlorinator with the R172009Z 3" Cap O-Ring. Designed for reliable performance and easy replacement.


Key Features & Benefits:

  • Genuine Replacement Part: Designed for use with Pentair Rainbow 300 and 320 series chlorinators.

  • 3" Cap O-Ring: Provides a tight, leak-resistant seal to prevent water and chlorine gas leaks.

  • Durable Material: Constructed from chemical-resistant rubber for long-lasting performance in chlorinated systems.

  • Easy to Install: Simple replacement process with no special tools required.

  • Prevents Pressure Leaks: Helps maintain consistent system pressure and chlorinator efficiency.

  • Essential for Maintenance: Replace worn or cracked O-rings regularly to avoid system failure or leaks.


Product Overview:

The Pentair R172009Z Rainbow 3" Cap O-Ring is a critical sealing component for Rainbow 300 and 320 series automatic chlorinators. This OEM replacement part ensures a snug, watertight fit on the chlorinator cap, preventing leaks and maintaining system integrity.

Made from high-quality, chemical-resistant rubber, this O-ring stands up to the harsh environment of chlorinated pool water. Whether you're servicing your chlorinator or performing routine maintenance, replacing a worn O-ring with the R172009Z helps protect your equipment and ensures reliable chlorine delivery to your pool or spa.