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Availability:
In Stock.
Arrives
Tuesday, Aug 25
Size: 7.5k-20k
Pattern Name: gallons
Features
- Eliminates all types of Pool Algae
- Reduces chemical demand
- Effective for up to 6 Months
- NSF/ANSI 50 Certified
- Ideal for Chlorine, Salt, UV or Ozone systems
- New formula now with 3 Active Ingredients
Description
Pool Rx+ [Pool Rx Plus] is the updated algaecide formula from Pool Rx. Pool Rx+ contains three active ingredients, Copper Sulphate, Zinc Sulfate and Silver Nitrate, adding additional layers of protection to the original Pool Rx formula you have come to trust. The blue Pool Rx+ pool unit is an EPA Registered, NSF/ANSI 50 Certified, swimming pool algaecide supporting 7.5K-20K gallons of water. Pool Rx+ reduces chemical demand, improves water quality, simplifying pool care for up to 6 months. The Pool Rx+ pool unit is effective in rejuvenating the Pool Rx+ minerals for up to 1 year in your pool. For best results, start with a new Pool Rx+ pool unit at the beginning of each swim season. For year-round pool use, add a Pool Rx+ booster after 6 months, or if you see algae coming back sooner. Pool Rx+ products can support any size body of water & are ideal for use in Chlorine, Salt, UV or Ozone pools
Brand: poolrx
Item Weight: 13.1 ounces
Item Form: Tablet
Product Benefits: Controls Algae
UPC:
Brand Name: poolrx
UPC: 700553310013
Number of Items: 1
Unit Count: 1 Count
Item Type Name: Swimming Pool Algaecide
Manufacturer: Pool Rx
Model Number: 331001
Manufacturer Part Number: 331001
Item Form: Tablet
Product Benefits: Controls Algae
Item Weight: 13.1 ounces
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Aug 25
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: 7,500 - 20,000 gallons
Pattern Name: 1 Unit
I’ve been using the PoolRX+ in our 15,000-gallon pool for the past few months, and it has truly been a transformative experience. For years, we struggled with relentless algae problems every summer, which made maintaining our pool a frustrating and labor-intensive task. Thankfully, the PoolRX+ has completely changed that. Installation was a breeze. I started by cleaning the pool filters thoroughly, which is crucial for optimal performance. Once the filters were clean, I simply installed the PoolRX+ unit into our pool filter system. It was as straightforward as promised—no extra tools or complicated procedures required. The results have been nothing short of amazing. Since adding the PoolRX+, our pool has stayed consistently clear, and algae has become a thing of the past. It’s remarkable how much easier pool maintenance has become. What used to be a major chore has turned into a quick and effortless task. We’ve also noticed a significant reduction in the amount of chemicals we need to use. The PoolRX+ effectively reduces the need for heavy chemical treatments, which not only saves us money but also creates a safer environment for our family. With the PoolRX+, our pool water remains clean and balanced with far fewer chemicals, which is a huge plus. The unit has proven to be durable and reliable, lasting between 5 to 6 months before needing replacement. This longevity ensures that we get through the entire summer season without any interruptions or additional purchases. One thing to note is that the PoolRX+ raises the copper levels in the water. While this is a natural outcome and not a major concern, it’s worth being aware of. The benefits far outweigh this minor issue, as the copper helps in maintaining algae-free water. In summary, the PoolRX+ has been an absolute game-changer for us. It has drastically improved our pool maintenance routine and allowed us to enjoy a clean, algae-free pool with minimal effort. I highly recommend the PoolRX+ to anyone dealing with algae issues or looking to simplify their pool care. It’s a fantastic investment that delivers impressive results!
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Reviewed in the United States on July 24, 2024 by Beasti93
Size: 7,500 - 20,000 gallons
Pattern Name: 1 Unit
I've been using this PoolRx device for almost a year and a half. It is ABSOLUTELY BRILLIANT!! Prior to this, I was using a floating Solar Shock unit which I purchased online from Costco. The Solar Shock worked well, but required weekly copper rod cleaning that was a PITA!!! It was messy, requiring you to scrape the copper rod with a wire brush, and soak the screen filter housing in CLR to keep it from getting completely calcified from hard water. During a calcium build-up cleaning by a professional company, I inquired about their weekly pool service (just to see what it would cost). When i got the quote from them, I noticed that they required that you have a PoolRx unit in order for them to honor the price they quoted. I had never heard of it, so I did a quick search and found that it's basically a MUCH BETTER version of the Solar Shock unit. You stick this item inside the pump basket. When your pool pump runs for normal cleaning, the chemicals inside this device disperse into your pool (it's invisible...no noticeable chemical smells or color). As these chemicals pass back through the pump basket, they interact with the copper rod located on the inside of the device and it actively keeps algae from growing in your pool. You still need to maintain some chlorine in your pool, but it has literally cut my chlorine usage IN HALF during the summer months in AZ. I went from 4+ chlorine tabs per week (in the 110+ degree summer months) down to 2. In the winter months, I use about 1 chlorine tablet every 2 weeks. I also have a unique "water wall" that acts like a high-end spa where water flows down the wall and creates a unique ambiance. The top of this water wall has a trough that stores a lot of water and during the summer months, that water can get NASTY in a hurry. I run the pump for this twice a day during the summer months to cycle the water, but with this PoolRx unit, a couple chlorine tabs and weekly shock treatments (necessary for my setup) my pool is crystal clear with absolutely no algae build-up (even when the water temps reach the 90s). Several summers back, even with the Solar Shock unit, I could not get the algae under control and eventually had to drain the pool, get it acid washed and start over. Take it from someone who has to maintain a pool in AZ, this thing WORKS! You need to add the refill chemicals every 4 to 6 months to keep everything working and you need to replace the whole PoolRx unit every year because the copper rod dissolves over time. For peace of mind knowing I won't have algae, the cost savings of 1/2 the chlorine usage, and it doesn't require maintenance...this thing is absolutely getting 5 stars from me. Hope this review helps.
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Reviewed in the United States on April 3, 2025 by Harley
Size: 7,500 - 20,000 gallons
Pattern Name: 1 Unit
I fight yellow algae every summer. I have tried several algae killing products with limited success. I placed PoolRX in my pool on June 9th and the water was crystal clear the next day. It has remained clear and I have had no algae. This is the first year I have been algae free.
Reviewed in the United States on July 9, 2026 by J. Brown
Size: 7,500 - 20,000 gallons
Pattern Name: 1 Unit
I waited several months before writing a review to know if it would work as advertised and I am happy to say, it does! We have struggled with algae in our pool for two years. Last summer, we got 5 weeks of use before an algae bloom and battled it the rest of the summer, giving up and closing down the pool with green water. The amount of money we spent on treatments that did not work was incredible. We opened the pool this year and it seemed promising but after a couple weeks, it turned that dreaded teal/green color indicating algae. We used algaecide then flocculant and got clear but cloudy water, then it began turning green again. I read a lot of reviews and decided to give PoolRx a try. We added it while the water was gray and cloudy. It is super easy to set up and we added it to the pump basket, which is the recommended way. It turned the water in the filter blue for a bit, which is normal. It took about two weeks to completely clear the water but ever since, we have crystal clear water despite extreme heat and humidity (perfect algae growing conditions). Our ph and alkalinity levels are perfect. Haven’t had to adjust those at all. We use 32 oz of liquid chlorine every night and maintain 2ppm on that test. It is an amazing product that does exactly what it says it does. We could not be happier. To have gone from being so discouraged that we wanted to get rid of the pool, to having perfect pool water with minimal chemicals is crazy! Thank you PoolRx.
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Reviewed in the United States on July 22, 2026 by Susanna Denninger
Size: 7,500 - 20,000 gallons
Pattern Name: 1 Unit
I can’t believe it honestly. I read all the reviews. Everyone said it would work. We’ve struggled with algae all summer long. As 15+yr pool owners, this has never been an issue for us. We’ve tried everything. The first photo was taken June 25th. The second photo was taken today on June 28th. Three days, no extra chemicals, nothing else added and it’s perfect. This is about 6500 gallons of well water. I added it directly to my skimmer and followed the sand pump instructions to run it 12 hrs on recirculate. After that we put it back to filter and just run it as normal. We’ve had a ton of storms as I’m sure you can see from my broken umbrella and even with all the rain, it stayed crystal clear. I’m super happy with it.
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Reviewed in the United States on June 28, 2026 by A. Ess
Size: 7,500 - 20,000 gallons
Pattern Name: 1 Unit
This has worked so well with keeping my pool blue! I’ve been so happy with the pool rx, it’s also helped me not to blow through my chlorine tablets as quickly
Reviewed in the United States on July 21, 2026 by Jaedyn Hope
Size: 7,500 - 20,000 gallons
Pattern Name: 1 Unit
I wouldn’t open our pool without this anymore! We’ve been using the PoolRX for a while now, and it’s made a huge difference in keeping our water clean and clear. Since we started using it, we haven’t had any algae issues, which has saved us both time and frustration. It’s easy to use, works exactly as advertised, and helps make pool maintenance much simpler. For us, it’s been a no-brainer purchase, and I’ll continue buying one every pool season. Highly recommend!
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Reviewed in the United States on July 7, 2026 by Julie W.
Size: 7,500 - 20,000 gallons
Pattern Name: 1 Unit
While probably overpriced for what you're getting, they are convenient and very effective. You may want to mind your metals if using these if you're worried about staining just to keep a handle on that. I haven't had any noticable staining on my vinyl liner, but I'm not too worried about that. I'm satisfied to wipe out the algae in one fell swoop and to be able to get away with using less chlorine for the whole summer.
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Reviewed in the United States on June 28, 2026 by Mark