---
product_id: 362777227
title: "PoolRX+ pool unit 7.5k-20k gallons"
brand: "poolrx"
price: "C$8073"
currency: NIO
in_stock: true
reviews_count: 4
category: "Poolrx"
url: https://www.desertcart.ni/products/362777227-poolrx-pool-unit-7-5k-20k-gallons
store_origin: NI
region: Nicaragua
---

# 6 months algae protection 3 active minerals blend reduces chemical use PoolRX+ pool unit 7.5k-20k gallons

**Brand:** poolrx
**Price:** C$8073
**Availability:** ✅ In Stock

## Summary

> 💧 Dive into effortless, sparkling pools with PoolRx+—your secret weapon against algae!

## Quick Answers

- **What is this?** PoolRX+ pool unit 7.5k-20k gallons by poolrx
- **How much does it cost?** C$8073 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/362777227-poolrx-pool-unit-7-5k-20k-gallons)

## Best For

- poolrx enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Maintenance:** Simply place in pump basket and enjoy crystal-clear water all season
- • **Half-Year Peace of Mind:** Up to 6 months of continuous pool clarity without hassle
- • **Chemical Budget Friendly:** Slash your chlorine use and save big on pool chemicals
- • **Universal Pool Compatibility:** Perfect for Chlorine, Salt, UV & Ozone systems—flexible pool care
- • **Triple-Action Mineral Formula:** Copper, Zinc & Silver team up for unbeatable algae defense

## Overview

PoolRx+ is an EPA-registered, NSF/ANSI 50 certified algaecide designed for pools holding 7,500 to 20,000 gallons. Featuring a powerful triple-mineral formula of Copper Sulphate, Zinc Sulfate, and Silver Nitrate, it effectively eliminates all types of algae while reducing chemical demand. Compatible with Chlorine, Salt, UV, and Ozone systems, PoolRx+ provides up to 6 months of low-maintenance pool protection, making it the go-to solution for millennial pool owners seeking crystal-clear water with minimal effort.

## 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

Review: Awesome product - I’ve been using PoolRX for about three years, and it has kept my pool consistently sparkling with no algae issues at all. Living in Texas, the extreme heat really does a number on keeping pool chemicals balanced, but PoolRX has made that a non-issue. I replace it every 4–6 months, and it works quietly in the background without constant monitoring or extra effort. Before PoolRX, I was spending a fortune at the pool store on chemicals—easily five times what this product costs in a year—just trying to control algae. Now I use far fewer chemicals, save money, and enjoy a clear, low-maintenance pool. Highly recommend.
Review: THIS THING WORKS!! Even in the AZ summer months, it cut my chlorine usage in half! - 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.

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09FWQ8QCH |
| Best Sellers Rank | #254 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #2 in Swimming Pool Algaecides |
| Brand | poolrx |
| Customer Reviews | 4.5 4.5 out of 5 stars (6,282) |
| Item Form | Tablet |
| Item Weight | 13.1 ounces |
| Item model number | 331001 |
| Manufacturer | Pool Rx |
| Number of Items | 1 |
| Product Benefits | Controls Algae |
| Product Dimensions | 3.25 x 3.25 x 4.5 inches |
| UPC | 700553310013 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** poolrx
- **Item Form:** Tablet
- **Item Weight:** 13.1 Ounces
- **Product Benefits:** Controls Algae
- **UPC:** 700553310013

## Images

![PoolRX+ pool unit 7.5k-20k gallons - Image 1](https://m.media-amazon.com/images/I/51Chco5gK2L.jpg)

## Available Options

This product comes in different **Pattern, Size** options.

## Questions & Answers

**Q: Has anyone else had a problem after using this product with it turning your blonde hair green.**
A: According to the Pool RX website, if hair turns green it’s because the chlorine is too high and reacting with the minerals in pool RX.  Recommend chlorine level while using pool RX is 1 to 1.5 ppm.  Not the normal 2 to 3 ppm recommendation for a residential pool.  Hope that helps

**Q: Does it work for black algae**
A: I use no algaecide now and my water is crystal clear. A properly maintained pool will not be susceptible to algae blooms. I use only chlorine, acid, base, and stabilizer. If you live in an area with high phosphates, you may wish to add some Phosfree+ to eliminate excess amounts as they are food for algae. Go to troublefreepool's website (100% free and an awesome community) to learn about your water chemistry and the proper methods/tools to test it. They also have chemical calculators and forums for resolving issues (e.g. algae blooms, cloudy water, etc). Good luck

**Q: This stained my inground pool with dark gray stains. UGLY!  Are they "metal" stains?  What would be the best STAIN REMOVER to buy to remove them?**
A: For this staining you need to have a professional to analyze your pool water. I did not have stains as a result of Pool RX. But my water is clear and no algae  so far.

**Q: I purchased in March, worked great when weather was not hot, now it’s not helping at all. Pool is green and it’s cloudy too. How long should it last?**
A: If your pool had a lot to clean up I think it doesn’t last as long. Also did you clean your filter when you put in the pool RX? My first one didn’t last as long so I got the poll RX plus. It’s been doing a great job. Also the pool gallons or size effects the longevity.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Awesome product
*by A***T on February 9, 2026*

I’ve been using PoolRX for about three years, and it has kept my pool consistently sparkling with no algae issues at all. Living in Texas, the extreme heat really does a number on keeping pool chemicals balanced, but PoolRX has made that a non-issue. I replace it every 4–6 months, and it works quietly in the background without constant monitoring or extra effort. Before PoolRX, I was spending a fortune at the pool store on chemicals—easily five times what this product costs in a year—just trying to control algae. Now I use far fewer chemicals, save money, and enjoy a clear, low-maintenance pool. Highly recommend.

### ⭐⭐⭐⭐⭐ THIS THING WORKS!! Even in the AZ summer months, it cut my chlorine usage in half!
*by H***Y on April 3, 2025*

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.

### ⭐⭐⭐⭐⭐ Great product, saves time and money
*by H***S on September 20, 2023*

My pool guy had recommended this stuff to me and offered me a discount on weekly service if I let him use it in my pool. He charged me $90 a year for the PoolRx (which he didn't name, he just called it a "mineral treatment" and I later found out what it was) and discounted my service $10 per month, so it was a net savings for me, it made his job easier, and now I see it probably saved him money on chlorine, too. I later took over the pool maintenance on my own to save money and looked for advice online. I found a very knowledgeable community on a certain website that was full of great advice and pool care tips, but some of the more vocal, condescending members of the forum were very against using any type of mineral additives like Pool Rx and would ridicule anyone that said they were going to. It seemed that more than anything they were stuck in their ways, but they had some credibility and made some plausible arguments against it, so I followed the advice and was using only liquid chlorine to sanitize and keep algae at bay. I was having to shock my pool a lot more than I had liked and the algae still appeared in some areas even though I was keeping my pool at 5 ppm chlorine most of the time. That's higher than I wanted to keep levels at but algae would get bad if I didn't (and yes, stabilizer and Ph were ON POINT). I was going through a lot of chlorine. After about a year of this, I said the heck with it and bought the Pool Rx. Huge difference, right away. I bought the 7.5-20K gallon size for my 22K gallon pool because that was what my pool guy had used. It has worked great and I have had no algae and no problems with chlorine levels kept at 1-1.5 ppm through the hottest 4 months of a Phoenix summer. Chlorine has even dropped to 0.5 ppm a couple of times when I had to go longer than normal between servicing it, but I still had no problems. I have not experienced any of the negatives that the "experts" had warned about. No increased scaling or staining, no green hair, no problems with the pump or equipment. Just clear water, a pool that is easier to maintain, and a pretty good savings on chlorine. I added this canister in May and I plan to add the booster in October, then I'm starting over with another canister next May.

## Frequently Bought Together

- PoolRX+ pool unit 7.5k-20k gallons
- Clorox Pool&Spa XTRABLUE 3” Chlorinating Tablets, Individually Wrapped, Kills Bacteria & Stops Algae (5 LB)
- EASYTEST 9-Way Pool Test Strips, 140 Strips for Hot tub and Spa, Accurate Testing pH, Total Chlorine, Free Chlorine, Bromine, Alkalinity, Total Hardness, Cyanuric Acid, Salt and Copper

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-03-13*