---
product_id: 3227218
title: "SeaKlear 90-Day Algae Prevention & Remover, 1 Qt"
brand: "seaklear"
price: "238 zł"
currency: PLN
in_stock: true
reviews_count: 8
category: "Sea Klear"
url: https://www.desertcart.pl/products/3227218-seaklear-90-day-algae-prevention-and-remover-1-qt
store_origin: PL
region: Poland
---

# 90-day algae prevention Non-staining & non-foaming formula 11.8% Copper Sulfate Pentahydrate SeaKlear 90-Day Algae Prevention & Remover, 1 Qt

**Brand:** seaklear
**Price:** 238 zł
**Availability:** ✅ In Stock

## Summary

> 💦 Crystal-clear pools, zero algae drama — all season long!

## Quick Answers

- **What is this?** SeaKlear 90-Day Algae Prevention & Remover, 1 Qt by seaklear
- **How much does it cost?** 238 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/3227218-seaklear-90-day-algae-prevention-and-remover-1-qt)

## Best For

- seaklear enthusiasts

## Why This Product

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

## Key Features

- • **Easy, no-fuss application:** Just 16 fl oz per 10,000 gallons for prevention; doubles for severe algae outbreaks.
- • **Long-lasting algae defense:** Keeps your pool crystal clear for a full 3 months with one treatment.
- • **Powerful multi-algae killer:** Effectively eliminates blue-green, black, yellow, and green algae resistant to chlorine.
- • **Gentle on your pool surfaces:** Non-staining and non-foaming formula protects your pool’s finish and water clarity.
- • **Trusted by pros & pool owners alike:** Certified Pool Operators and thousands of users swear by its reliable performance.

## Overview

SeaKlear 90-Day Algae Prevention & Remover is a professional-grade liquid treatment featuring 11.8% Copper Sulfate Pentahydrate that kills and prevents multiple algae types for up to 90 days. Its non-staining, non-foaming formula ensures pool surfaces stay pristine while delivering easy, effective algae control with minimal maintenance.

## Description

SeaKlear 90-Day Algae Prevention & Remover, 1 Gallon Bottle. kills & prevents blue-green, green, yellow & black algae.

Review: Great product for PREVENTING algae - This is an awesome product which we've been using for years. One caveat is that you need to make sure that your pool is absolutely algae-free when you put this in. This is to prevent algae not to get rid of algae that's already there. And of course the rest of your chemicals need to be kept in line. You can't expect miracles but this stuff is great if you are good about maintaining your pool etc it's not a panacea though.
Review: 11 years, No Algae! Works like a charm! - I have used this product for 11 years. One bottle when I open the pool in the spring, one when I cover it up for winter. Easy application, you just pour it in around the pool plus in front of the jet and run the pump for a couple of hours. I have never had an algae problem. It is nice when a product does what is advertised, is consistent, and the price has remained relatively steady for years. I have recommended this product to several new pool users.

## Features

- Reliable & Effective
- 90-days no algae guarantee (when used according to instructions in balanced pool water)
- Kills and prevents blue-green, green, yellow and black algae
- Non-foaming, non-staining (when used according to instructions in balanced pool water)
- 11.8% Copper Sulfate Pentahydrate; 3% Copper as elemental
- Effective against blue-green, black and mustard algae
- Nonstaining formula
- Each treatment will last three months
- Use 16 fluid ounce 10000-gallon of pool water to prevent algae growth in all pool types
- For severe algae treatment use 32 fluid ounce per 10000-gallon of pool water

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0049VQ89S |
| Best Sellers Rank | #4,477 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #16 in Swimming Pool Algaecides |
| Brand | SeaKlear |
| Brand Name | SeaKlear |
| Customer Reviews | 4.4 out of 5 stars 4,057 Reviews |
| Item Form | Liquid |
| Item Type Name | 90411SKR |
| Item Weight | 2.4 Pounds |
| Manufacturer | SeaKlear |
| Manufacturer Part Number | SKA-B-Q |
| Model Number | SKA-B-Q |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product Benefits | Controls Algae |
| UPC | 662817904119 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** SeaKlear
- **Item Form:** Liquid
- **Item Weight:** 2.4 Pounds
- **Product Benefits:** Controls Algae
- **UPC:** 662817904119

## Images

![SeaKlear 90-Day Algae Prevention & Remover, 1 Qt - Image 1](https://m.media-amazon.com/images/I/71w016hEQtL.jpg)
![SeaKlear 90-Day Algae Prevention & Remover, 1 Qt - Image 2](https://m.media-amazon.com/images/I/71ODJcm-BoL.jpg)
![SeaKlear 90-Day Algae Prevention & Remover, 1 Qt - Image 3](https://m.media-amazon.com/images/I/71Oc+zKoFuL.jpg)
![SeaKlear 90-Day Algae Prevention & Remover, 1 Qt - Image 4](https://m.media-amazon.com/images/I/31m7QglPXML.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product for PREVENTING algae
*by A***G on May 15, 2026*

This is an awesome product which we've been using for years. One caveat is that you need to make sure that your pool is absolutely algae-free when you put this in. This is to prevent algae not to get rid of algae that's already there. And of course the rest of your chemicals need to be kept in line. You can't expect miracles but this stuff is great if you are good about maintaining your pool etc it's not a panacea though.

### ⭐⭐⭐⭐⭐ 11 years, No Algae! Works like a charm!
*by F***A on May 16, 2026*

I have used this product for 11 years. One bottle when I open the pool in the spring, one when I cover it up for winter. Easy application, you just pour it in around the pool plus in front of the jet and run the pump for a couple of hours. I have never had an algae problem. It is nice when a product does what is advertised, is consistent, and the price has remained relatively steady for years. I have recommended this product to several new pool users.

### ⭐⭐⭐⭐⭐ Does what it promises
*by M***S on April 6, 2026*

This the third bottle I've gotten. It has performed as promised. I get the pool stabilized, add the recommended amount and the pool does stay algea free for three months. I get two applications from a bottle for my sized pool.

## Frequently Bought Together

- SeaKlear 90-Day Algae Prevention & Remover, 1 Qt
- Clorox® Pool&Spa™ Swimming Pool Algaecide and Clarifier, Prevents and Treats Pool Algae, Clears Water, 128 Fl Oz (Pack of 1)
- HTH 52037R Pool Care Shock Advanced, Swimming Pool Chemical - Cal Hypo Formula, Prevents Bacteria & Algae, Restores Crystal Clear Water - Shock Treatment, 1lb (12 Pack)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-05-24*