---
product_id: 362777227
title: "PoolRX+ pool unit 7.5k-20k gallons"
brand: "poolrx"
price: "S$111"
currency: SGD
in_stock: true
category: "Poolrx"
url: https://www.desertcart.sg/products/362777227-poolrx-pool-unit-7-5k-20k-gallons
store_origin: SG
region: Singapore
---

# 6 months effective duration 3 active ingredients blend Reduces chemical demand PoolRX+ pool unit 7.5k-20k gallons

**Brand:** poolrx
**Price:** S$111
**Availability:** ✅ In Stock

## Summary

> 💧 Dive into effortless, crystal-clear pool perfection!

## Quick Answers

- **What is this?** PoolRX+ pool unit 7.5k-20k gallons by poolrx
- **How much does it cost?** S$111 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/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

- • **Certified Peace of Mind:** NSF/ANSI 50 certified for trusted, safe pool maintenance.
- • **Universal Compatibility:** Perfect for Chlorine, Salt, UV, or Ozone pool systems.
- • **Long-Lasting Performance:** Up to 6 months of continuous algae protection per unit.
- • **Triple-Action Algae Defense:** Copper, Zinc & Silver team up to annihilate all algae types.
- • **Half the Chemicals, Double the Ease:** Cut your chlorine use in half and simplify pool care.

## Overview

PoolRX+ is a cutting-edge, EPA-registered algaecide unit designed for pools holding 7,500 to 20,000 gallons. Featuring a powerful triple-ingredient formula of Copper Sulphate, Zinc Sulfate, and Silver Nitrate, it delivers up to 6 months of algae-free water while significantly reducing chemical usage. Certified NSF/ANSI 50, PoolRX+ seamlessly integrates with Chlorine, Salt, UV, or Ozone systems, transforming pool maintenance into a low-effort, cost-saving routine favored by thousands of pool owners.

## 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

## 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 | #327 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #2 in Swimming Pool Algaecides |
| Brand Name | poolrx |
| Customer Reviews | 4.5 4.5 out of 5 stars (6,389) |
| Item Form | Tablet |
| Item Type Name | Swimming Pool Algaecide |
| Item Weight | 13.1 Ounces |
| Manufacturer | Pool Rx |
| Manufacturer Part Number | 331001 |
| Model Number | 331001 |
| Number of Items | 1 |
| Product Benefits | Controls Algae |
| 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)
![PoolRX+ pool unit 7.5k-20k gallons - Image 2](https://m.media-amazon.com/images/I/51G3cpuo+WL.jpg)
![PoolRX+ pool unit 7.5k-20k gallons - Image 3](https://m.media-amazon.com/images/I/71TJar2htNL.jpg)
![PoolRX+ pool unit 7.5k-20k gallons - Image 4](https://m.media-amazon.com/images/I/81+cqDEKkJL.jpg)
![PoolRX+ pool unit 7.5k-20k gallons - Image 5](https://m.media-amazon.com/images/I/71UlXEY8wtL.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.

## 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 Singapore*
*Store origin: SG*
*Last updated: 2026-06-25*