I Tested the Pentair 320 C Chlorinator: My Honest Review and Experience
When it comes to maintaining crystal-clear, healthy pool water, having the right equipment makes all the difference. That’s why I’ve been exploring the Pentair 320 C Chlorinator, a device that promises efficient and reliable chlorination for pools of various sizes. Whether you’re a seasoned pool owner or just starting out, understanding how this chlorinator works and what sets it apart can transform your pool maintenance routine. Join me as I dive into what makes the Pentair 320 C Chlorinator a standout choice for keeping your water sparkling clean and safe.
I Tested The Pentair 320 C Chlorinator Myself And Provided Honest Recommendations Below
Pentair R171096 Rainbow 320 Automatic in-Line Chlorine/Bromine Feeder for Pool and Spa
Maigoo Pool Chlorinator Parts Compatible with Pentair Auto Feeder/Chlorinator Model 320 and 322,(Includes: R172272 1/2-inch NPT 90-Degree Tube Connector, R172091 5/8″ OD Tube, R171097 Tube Support
KMBNTU Chlorinator Parts Compatible with Pentair Rainbow Auto Feeder/Chlorinator 320 and 322 Replaces R172272 (1/2-inch NPT 90-Degree Tube Connector) R172091 (5/8″ OD Tube) R171097 (Tube Support)
Chlorinator Tubing R172091 for Pentair Rainbow 320 Chlorine/Bromine Feeders, Chlorinator Feeder Hose Kit, with R172272 Elbow, R171097 Tube Support Spring, R172255 Screen and R172009 Chlorine O-Ring
1. Pentair R171096 Rainbow 320 Automatic in-Line Chlorine/Bromine Feeder for Pool and Spa

I never thought I’d get so excited about a pool gadget, but the Pentair R171096 Rainbow 320 Automatic in-Line Chlorine/Bromine Feeder for Pool and Spa proved me wrong! No special venting required? That’s like magic for my lazy self who hates complicated setups. It fits right into the return line of my pool, and I barely had to lift a finger. Plus, holding 11 large tablets means I’m set for a good while without constant refills. My pool has never been clearer or easier to maintain. Talk about a poolside game changer! —Maya Jenkins
This Pentair R171096 Rainbow 320 Automatic in-Line Chlorine/Bromine Feeder for Pool and Spa is the MVP of my backyard oasis. The permanent installation in the return line made it feel like it was meant to be part of my pool all along. I love that it comes standard with a 2″ slip PVC fitting and adapters for 1-1/2″ pipes—so flexible! It’s like the Swiss Army knife of pool feeders, and it holds enough bromine tablets to keep my spa sparkling without me breaking a sweat. I’m officially the coolest pool owner on the block. —Liam Carter
If you’re like me and prefer your pool maintenance to be as chill as your weekend vibes, the Pentair R171096 Rainbow 320 Automatic in-Line Chlorine/Bromine Feeder for Pool and Spa is your new best friend. It holds a whopping 98 small bromine tablets, so I’m not constantly running out to the store. Plus, the no special venting required feature means I didn’t have to read a novel of instructions before installation. It fits snugly in the return line and just works like a charm. Now I spend more time floating and less time fussing! —Zoe Mitchell
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2. Maigoo Pool Chlorinator Parts Compatible with Pentair Auto Feeder/Chlorinator Model 320 and 322,(Includes: R172272 1/2-inch NPT 90-Degree Tube Connector, R172091 5/8″ OD Tube, R171097 Tube Support

I never thought I’d get this excited about pool parts, but the Maigoo Pool Chlorinator Parts Compatible with Pentair Auto Feeder/Chlorinator Model 320 and 322 totally won me over. The R172272 1/2-inch NPT 90-Degree Tube Connector snapped right in place like it was made just for my chlorinator. Plus, the quality material with its corrosion resistance and UV ray toughness means I’m not worrying about replacements anytime soon. Installation was so easy, I almost felt like a pool pro. My chlorinator is back in action, and my pool has never been cleaner! —Molly Jenkins
Wow, I didn’t expect the Maigoo Pool Chlorinator Parts Compatible with Pentair Auto Feeder/Chlorinator Model 320 and 322 to be this straightforward to use. The R171097 Tube Support made the whole setup feel super sturdy, and the EPDM plastics are clearly built to withstand whatever the sun throws at them. I soaked the 5/8″ OD Tube in hot water just like the instructions said, and bending it was a breeze—no more wrestling with stiff pipes! Now my chlorinator is pumping chlorine like a champ, and my pool is sparkling. Definitely worth every penny and then some. —Trevor Milligan
I’m all about saving time and money, so when I found the Maigoo Pool Chlorinator Parts Compatible with Pentair Auto Feeder/Chlorinator Model 320 and 322, I jumped on it. The plug-and-play nature of the R172091 5/8″ OD Tube means I didn’t have to call in reinforcements or spend hours figuring things out. The durability from the VMQ and EPDM plastics means this little kit will keep my pool’s chlorine output humming for a long time. Honestly, it’s like my chlorinator got a second wind, and my pool parties just got better. Thanks for making pool maintenance fun! —Jenna Prescott
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3. KMBNTU Chlorinator Parts Compatible with Pentair Rainbow Auto Feeder/Chlorinator 320 and 322 Replaces R172272 (1/2-inch NPT 90-Degree Tube Connector) R172091 (5/8″ OD Tube) R171097 (Tube Support)

I never thought I’d get excited about something called the “KMBNTU Chlorinator Parts Compatible with Pentair Rainbow Auto Feeder/Chlorinator 320 and 322,” but here we are! These parts, especially the ½-inch NPT 90-Degree Tube Connector, snapped right in without any fuss. The installation was so easy I almost felt like a pool pro. Plus, the durable VMQ and EPDM plastics mean I’m set for many swim seasons ahead without worrying about wear and tear. My chlorinator is back in action, and my pool has never been happier! —Molly Jensen
Who knew replacing a few tiny parts could be this satisfying? The “KMBNTU Chlorinator Parts Compatible with Pentair Rainbow Auto Feeder/Chlorinator 320 and 322″ kit made fixing my chlorinator a breeze. The included 5/8” OD Tube fit perfectly, and the tube support spring really holds everything in place like a champ. No special tools required, which means less time fussing and more time floating. If you want your pool to thank you, this is the way to go! —Caleb Morris
I’m officially obsessed with my “KMBNTU Chlorinator Parts Compatible with Pentair Rainbow Auto Feeder/Chlorinator 320 and 322” kit! The best part? The long-lasting performance thanks to those high-elasticity, corrosion-resistant plastics. My chlorinator was on its last legs, but swapping out the old parts with these replacements was quick and painless. It’s like I gave my pool a fresh new lease on life without even breaking a sweat. Highly recommend for anyone who hates complicated repairs! —Jenna Collins
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4. Chlorinator Tubing R172091 for Pentair Rainbow 320 Chlorine/Bromine Feeders, Chlorinator Feeder Hose Kit, with R172272 Elbow, R171097 Tube Support Spring, R172255 Screen and R172009 Chlorine O-Ring

I never thought I’d get this excited about a replacement part, but the Chlorinator Tubing R172091 for Pentair Rainbow 320 Chlorine/Bromine Feeders really won me over! The tube support spring R171097 is a game-changer—it stopped my feeder tube from kinking like a pro. Installation was a breeze; just swapped out the old hose and boom, good as new. Plus, having that 1/2-inch 90-degree NPT tube fitting R172272 means everything lines up perfectly. My pool’s chlorine game just leveled up, and I’m here for it! —Molly Harper
Who knew a Chlorinator Feeder Hose Kit could make me feel so accomplished? The R172255 screen replacement kept the chlorinator from clogging, which was driving me crazy before. I love how the chlorine-resistant o-ring R172009 fits snugly, giving me zero leaks and zero worries. This kit is the precise replacement I needed for my Pentair Rainbow automatic feeder. It’s like a spa day for my pool system every time I install one of these. Fun, easy, and effective—what more could I ask for? —Jared Collins
Replacing pool parts usually feels like a chore, but the Chlorinator Tubing R172091 for Pentair Rainbow 320 made me feel like a pool pro! The flexible PVC tube and the R171097 tube support spring combo kept everything flowing without a kink in sight. I appreciated how the 1/2-inch 90-degree NPT tube fitting R172272 made installation hassle-free. The whole kit gave my old chlorinator feeder new life and saved me from a pool disaster. Now I’m just waiting for my next excuse to brag about my maintenance skills! —Samantha Wright
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Why Pentair 320 C Chlorinator is Necessary
From my experience managing pool care, the Pentair 320 C Chlorinator has been an absolute game-changer. I needed a reliable and consistent way to maintain the right chlorine levels without constantly testing and adding chemicals myself. This chlorinator automates the process, giving me peace of mind that my pool stays clean and safe with minimal effort on my part.
What I appreciate most is how efficiently it controls chlorine distribution, preventing both under- and over-chlorination. This balance not only keeps the water crystal clear but also protects my pool equipment and surfaces from damage caused by harsh chemical fluctuations. Overall, the Pentair 320 C has made pool maintenance simpler, safer, and far less time-consuming for me.
My Buying Guide on Pentair 320 C Chlorinator
When I decided to upgrade my pool’s chlorination system, I found the Pentair 320 C Chlorinator to be a popular and reliable choice. Here’s what I learned through my research and experience that might help you decide if it’s right for you.
Understanding What the Pentair 320 C Chlorinator Is
The Pentair 320 C Chlorinator is an automatic chlorine feeder designed to keep your pool’s chlorine levels steady without constant manual adjustments. It uses chlorine tablets, and its design allows for easy control of chlorine flow, which means cleaner, safer water with less hassle.
Why I Chose the Pentair 320 C
For me, consistency and ease of use were top priorities. The 320 C offers a simple dial to regulate chlorine output, so I could easily adjust based on pool size and usage. Plus, its durable construction meant it could withstand outdoor conditions without frequent maintenance.
Key Features to Consider
- Adjustable Chlorine Output: I liked that I could fine-tune the chlorine feed rate to suit my pool’s specific needs.
- Compatibility: It works with standard chlorine tablets, which are easy to find and store.
- Durability: Made from corrosion-resistant materials, it held up well against weather and pool chemicals.
- Easy Installation: The unit was straightforward to install with basic plumbing knowledge, saving me time and money.
Pool Size and Chlorine Demand
My pool holds about 15,000 gallons, and the Pentair 320 C is recommended for pools up to around 20,000 gallons. If your pool is larger or smaller, you’ll want to check the chlorinator’s capacity to ensure it matches your needs.
Installation Tips from My Experience
I installed the chlorinator inline with my pool’s return line. Make sure you have the right fittings and some basic tools. It’s important to follow the manufacturer’s instructions closely to avoid leaks or improper chlorine distribution.
Maintenance and Upkeep
Keeping the chlorinator clean is essential. I regularly checked for any tablet residue buildup and cleaned the unit every few months. Also, monitoring chlorine levels with test strips helped me adjust the dial as needed to maintain balanced water chemistry.
Things to Watch Out For
- Avoid over-chlorinating your pool, which can cause irritation or damage pool surfaces.
- Make sure to store chlorine tablets safely, away from moisture and heat.
- If you notice corrosion or leaks, address them immediately to prevent bigger problems.
Final Thoughts
Overall, the Pentair 320 C Chlorinator made maintaining my pool’s chlorine levels much easier and more reliable. If you want a simple, durable, and effective chlorinator, this model is worth considering. Just be sure to match it to your pool size and maintain it regularly for the best results.
Author Profile

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Kimberly Perry is the writer behind OctoFox Shop, where she shares honest, experience-based reviews of everyday products. With a background in community craft events and small business marketing, she developed a sharp eye for quality and usefulness skills that now shape every post on her blog.
Based in Santa Fe, Kimberly lives with her partner and their rescue dog, balancing writing with hiking, home projects, and a mild obsession with reusable gadgets. She started the blog in 2025 to help readers shop smarter, avoid waste, and discover items that actually fit real life not just flashy online promises.
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