Pentair Rainbow 300/320 Chlorinator Lid O-Ring (R172009) – 1 Pc

Seal it up and keep your chlorinator leak-free with this O-Ring replacement for the Pentair Rainbow 300/320 Chlorinator. Designed to provide a perfect, snug fit, this O-ring keeps water where it’s supposed to be—inside your chlorinator, not all over your pool deck. If your chlorinator lid is acting leaky, it’s time for a fresh seal.

Why This O-Ring is a Must-Have:

  • Perfect Fit: Specifically designed for Pentair/Rainbow models 300, 320, 322, 302, 300-19, and 300-29 in-line or off-line feeders.
  • Stop the Leaks: No more wet surprises around your pool—this O-ring creates a tight, watertight seal.
  • Reliable & Durable: Made with high-quality rubber to handle the pressure, water, and chemicals of pool maintenance.
  • Simple Swap: No fancy tools or deep pool knowledge required—just pop out the old one and pop in the new one.

Replaces OEM Part Number:

  • R172009

What’s Included:

  • 1 Chlorinator Lid O-Ring – All you need to stop the leak and get back to poolside relaxation.

Compatible Models:

  • Pentair Rainbow Models:
    • 300
    • 320
    • 322
    • 302
    • 300-19
    • 300-29
      (Works with in-line and off-line feeders.)

Why Your Pool Needs This O-Ring:

  • Stop the Drip-Drip-Drip: Nobody likes a leaky chlorinator lid—fix it fast with this snug-fit O-ring.
  • DIY Like a Pro: Swap it out in seconds—no tools, no headaches, no pool guy needed.
  • No More Wasted Chemicals: A leaky chlorinator wastes chlorine, which costs you $$$. This seal stops the leak and saves you cash.

Say goodbye to leaks and hello to a crystal-clear pool. This 1-pack of Pentair Rainbow Chlorinator Lid O-Rings fits like a glove and works like a charm. Grab yours today and keep your chlorinator running smoothly! 💧✨🔧