---
product_id: 42728162
title: "Pool Ruler R172009 Chlorine Resistant VITON O-Ring 2 Pack + Lubricant for Pentair Rainbow Chlorinator 300 & 320 Lid"
brand: "pool ruler"
price: "€ 19.71"
currency: EUR
in_stock: true
reviews_count: 8
category: "Pool Ruler"
url: https://www.desertcart.gr/products/42728162-pool-ruler-r172009-chlorine-resistant-viton-o-ring-2-pack
store_origin: GR
region: Greece
---

# Includes silicone lubricant 2-pack for backup ready 4x longer chlorine resistance Pool Ruler R172009 Chlorine Resistant VITON O-Ring 2 Pack + Lubricant for Pentair Rainbow Chlorinator 300 & 320 Lid

**Brand:** pool ruler
**Price:** € 19.71
**Availability:** ✅ In Stock

## Summary

> 💧 Seal your pool’s perfection with Viton power — don’t let leaks crash your summer!

## Quick Answers

- **What is this?** Pool Ruler R172009 Chlorine Resistant VITON O-Ring 2 Pack + Lubricant for Pentair Rainbow Chlorinator 300 & 320 Lid by pool ruler
- **How much does it cost?** € 19.71 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/42728162-pool-ruler-r172009-chlorine-resistant-viton-o-ring-2-pack)

## Best For

- pool ruler enthusiasts

## Why This Product

- Trusted pool ruler brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual-Pack Convenience:** Two o-rings in one purchase—use one now and keep a spare on hand to avoid downtime and last-minute trips.
- • **Full Season Guarantee:** Confidently backed by a full-season warranty—if it fails, you get a refund or replacement, no questions asked.
- • **Chlorine-Resistant Viton Seal:** Engineered with premium FKM Viton for up to 4x longer life than generic o-rings, ensuring a leak-proof pool season.
- • **Bonus Silicone Grease Included:** Comes with a 3g tube of Pool Ruler silicone lubricant, safe for your pool and o-rings, for effortless installation and lasting seal.
- • **Optimized for Pentair Chlorinators:** Perfect fit for Pentair Rainbow Chlorinator 300 & 320 lids, trusted by pool pros for reliable performance.

## Overview

The Pool Ruler R172009 O-Ring set features chlorine-resistant Viton (FKM) material that lasts up to 4 times longer than standard o-rings. Designed specifically for Pentair Rainbow Chlorinator 300 & 320 lids, it includes a 3g tube of safe silicone lubricant and comes in a convenient two-pack. Backed by a full-season guarantee, this kit ensures a durable, leak-free seal so you can spend more time enjoying your pool and less time maintaining it.

## Description

Don't be fooled by o-rings made of inferior compounds, this Pool Ruler o-ring is made from OEM spec Viton (FKM) which is chlorine resistant and will last up to 4 times as long as generic o-rings. Pool Ruler warrantys this for a full season if your o-ring fails, swells, or has a problem.

Review: Does the Job - I needed a new Chlorinator O-ring, so I bought this one. I cleaned up the chlorinator lid where the old O-ring was, coated my new o ring with the provided silicon grease and installed it. Fits as expected. No leaks. Works as expected. Plus, I have a spare for next time.
Review: Perfect fit and Viton will last! - The product (O-Ring) was exactly as described and slipped exactly into place and immediately sealed up my Polaris 320 Chlorinator. I still can’t believe Polaris is selling their units with junk O-Rings. I talked to a pro pool guy and he said they’ve known for years… And the OEM O-Rings barely last a season! Luckily these guys are here to save the day! No more $10 single season O-Rings for me! Buy these with confidence.

## Features

- CHLORINE RESISTANT VITON: Our R172009 o-ring is manufactured with Viton (FKM) which is resistant to chlorine, meaning a long lasting seal for your Pentair Chlorinator
- FREE LUBRICANT: Includes 3 gram tube of Pool Ruler Silicone Grease. This lubricant is safe for use on o-rings, your pool, and for you.
- TWO PACK: Use one now, keep the other as a spare.
- FULL SEASON GUARANTEE: This 2 Pack will last you the whole season, if not, we will refund or replace the kit, your choice.
- ENJOY YOUR POOL: Less time worrying, more time enjoying

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #32,803 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #258 in Pool & Spa Replacement Parts |
| Brand | Pool Ruler |
| Customer Reviews | 4.5 out of 5 stars 1,481 Reviews |
| Item Form | Ring |
| Item Weight | 3 Grams |
| Number of Items | 1 |
| Product Benefits | Provides durable and long-lasting use with chlorine resistance a full-season guarantee |
| UPC | 747906949346 |

## Product Details

- **Brand:** Pool Ruler
- **Item Weight:** 3 Grams
- **Item Form:** Ring
- **Product Benefits:** Provides durable and long-lasting use with chlorine resistance a full-season guarantee
- **UPC:** 747906949346

## Images

![Pool Ruler R172009 Chlorine Resistant VITON O-Ring 2 Pack + Lubricant for Pentair Rainbow Chlorinator 300 & 320 Lid - Image 1](https://m.media-amazon.com/images/I/61Q0sUAMb-L.jpg)
![Pool Ruler R172009 Chlorine Resistant VITON O-Ring 2 Pack + Lubricant for Pentair Rainbow Chlorinator 300 & 320 Lid - Image 2](https://m.media-amazon.com/images/I/61wSvB8xTML.jpg)
![Pool Ruler R172009 Chlorine Resistant VITON O-Ring 2 Pack + Lubricant for Pentair Rainbow Chlorinator 300 & 320 Lid - Image 3](https://m.media-amazon.com/images/I/81MR7iF4tdL.jpg)
![Pool Ruler R172009 Chlorine Resistant VITON O-Ring 2 Pack + Lubricant for Pentair Rainbow Chlorinator 300 & 320 Lid - Image 4](https://m.media-amazon.com/images/I/81XRJbgjKnL.jpg)
![Pool Ruler R172009 Chlorine Resistant VITON O-Ring 2 Pack + Lubricant for Pentair Rainbow Chlorinator 300 & 320 Lid - Image 5](https://m.media-amazon.com/images/I/81zzuWArZML.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Does the Job
*by G***R on January 18, 2025*

I needed a new Chlorinator O-ring, so I bought this one. I cleaned up the chlorinator lid where the old O-ring was, coated my new o ring with the provided silicon grease and installed it. Fits as expected. No leaks. Works as expected. Plus, I have a spare for next time.

### ⭐⭐⭐⭐⭐ Perfect fit and Viton will last!
*by B***B on July 6, 2024*

The product (O-Ring) was exactly as described and slipped exactly into place and immediately sealed up my Polaris 320 Chlorinator. I still can’t believe Polaris is selling their units with junk O-Rings. I talked to a pro pool guy and he said they’ve known for years… And the OEM O-Rings barely last a season! Luckily these guys are here to save the day! No more $10 single season O-Rings for me! Buy these with confidence.

### ⭐⭐⭐⭐⭐ silicone sealer included = big help
*by P***R on June 21, 2024*

I've replaced the o-ring several times before I bought this product, every time without that silicone sealer. I had been told that it was unnecessary and useless - WRONG! Installing this new ring with the sealer made it soooooo much easier. Also, it seems to have a slightly different (hopefully better) composition that allowed me to screw the lid down with less-than-monster-truck-force and still get a nice seal. Some rings have lasted way longer than others. If this one lasts as long as I hope it will, I will revisit this review. Seems like a quality product. Really happy with it so far!

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**Shop now:** [https://www.desertcart.gr/products/42728162-pool-ruler-r172009-chlorine-resistant-viton-o-ring-2-pack](https://www.desertcart.gr/products/42728162-pool-ruler-r172009-chlorine-resistant-viton-o-ring-2-pack)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-01*