---
product_id: 61064812
title: "Rx Clear Mega Shock | 73% Calcium Hypochlorite | Kills Algae in Swimming Pools | Works As Pool Sanitizer Clarifier and Algicide | One Pound Bags | 6 Pack"
brand: "rx clear"
price: "€ 145.08"
currency: EUR
in_stock: true
category: "Rx Clear"
url: https://www.desertcart.be/products/61064812-rx-clear-mega-shock-73-calcium-hypochlorite-kills-algae-in
store_origin: BE
region: Belgium
---

# Nighttime application - Maximize effectiveness 73% Calcium Hypochlorite - Ultra-strong sanitizer Multi-action formula - Sanitizes, clarifies & kills algae Rx Clear Mega Shock | 73% Calcium Hypochlorite | Kills Algae in Swimming Pools | Works As Pool Sanitizer Clarifier and Algicide | One Pound Bags | 6 Pack

**Brand:** rx clear
**Price:** € 145.08
**Availability:** ✅ In Stock

## Summary

> 💧 Shock your pool into perfection — clear, clean, and algae-free!

## Quick Answers

- **What is this?** Rx Clear Mega Shock | 73% Calcium Hypochlorite | Kills Algae in Swimming Pools | Works As Pool Sanitizer Clarifier and Algicide | One Pound Bags | 6 Pack by rx clear
- **How much does it cost?** € 145.08 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/61064812-rx-clear-mega-shock-73-calcium-hypochlorite-kills-algae-in)

## Best For

- rx clear enthusiasts

## Why This Product

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

## Key Features

- • **Precision Dosing:** 1 lb per 10,000 gallons ensures efficient, no-waste treatment
- • **Bulk 6-Pack Value:** Stock up and stay ahead of algae with six convenient one-pound bags
- • **Optimized Nighttime Use:** Apply after dark for peak performance and faster results
- • **Triple-Action Pool Care:** Sanitizes, clarifies, and eradicates algae in one easy step
- • **Powerful 73% Calcium Hypochlorite:** Delivers a rapid, high-impact chlorine boost for crystal-clear water

## Overview

Rx Clear Mega Shock is a professional-grade pool treatment featuring 73% calcium hypochlorite for powerful sanitizing, clarifying, and algae control. Designed for efficient dosing and best applied at night, this 6-pack of one-pound bags ensures your pool stays sparkling clean and algae-free with minimal effort.

## Description

desertcart.com : Rx Clear Mega Shock | 73% Calcium Hypochlorite | Kills Algae in Swimming Pools | Works As Pool Sanitizer Clarifier and Algicide | One Pound Bags | 6 Pack : Patio, Lawn & Garden

## Features

- MULTI-PURPOSE - This pool shock sanitizes, clarifies, and controls algae giving your swimming pool crystal clear water.
- INCREDIBLY STRONG - Due to its high percentage of chlorine, Mega Shock is very effective and efficient for a quick chlorine boost.
- MIX BEFORE YOU FIX - Add this powder to a bucket of water before you add it to your pool. Add a 1 lb bag per 10,000 gallons of pool water.
- BEAT THE GREEN: - Kill the algae in your swimming pool by adding 2 bags of shock per 14,000 gallons of pool water.
- WORKS BEST AT NIGHT - Maximize performance by adding this shock to your pool at night. Wait to swim 8 to 10 hours after application.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B078TLMLNR |
| Best Sellers Rank | #26,059 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #206 in Swimming Pool Chlorine |
| Brand | Rx Clear |
| Brand Name | Rx Clear |
| Customer Reviews | 4.7 out of 5 stars 650 Reviews |
| Item Form | Granular |
| Item Weight | 6 Pounds |
| Manufacturer | Rx Clear |
| Manufacturer Part Number | 20406306 |
| Model Number | 20406306 |
| Number of Items | 6 |
| Product Benefits | Controls Algae, Maintains Clean Sanitized Water |
| UPC | 840304235025 |
| Unit Count | 96 Ounce |

## Product Details

- **Brand:** Rx Clear
- **Item Form:** Granular
- **Item Weight:** 16 ounces
- **Number of Items:** 6
- **Product Benefits:** Sanitizes,Controls,Kills Algae

## Images

![Rx Clear Mega Shock | 73% Calcium Hypochlorite | Kills Algae in Swimming Pools | Works As Pool Sanitizer Clarifier and Algicide | One Pound Bags | 6 Pack - Image 1](https://m.media-amazon.com/images/I/71OA0eVjp-L.jpg)

## Available Options

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

## Questions & Answers

**Q: What are the ingredients in the package?**
A: Don't know but it works great in my vinyl pool. Just make sure you run your filter when you put it in the pool.

**Q: Will this suffice for water purification in emergency situations? I understand you have to make sure you get basic Pool Shock with no additives...**
A: This stuff was old and rocky and didn’t do good on my pool.

**Q: Can this be used for sanitizing drinking water in proper dilution. I have the formula but the recommended product was Ultima which is unavailable.**
A: I don't think it's a good idea, I wouldn't try it.

**Q: is product safe for vinyl pools?**
A: I use it in my vinyl pool and it works great just run your pool filter when you use it.

## Frequently Bought Together

- Rx Clear Mega Shock | 73% Calcium Hypochlorite | Kills Algae in Swimming Pools | Works As Pool Sanitizer Clarifier and Algicide | One Pound Bags | 6 Pack
- Clorox® Pool&Spa™ Swimming Pool Algaecide and Clarifier, Prevents and Treats Pool Algae, Clears Water, 128 Fl Oz (Pack of 1)
- 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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**Shop now:** [https://www.desertcart.be/products/61064812-rx-clear-mega-shock-73-calcium-hypochlorite-kills-algae-in](https://www.desertcart.be/products/61064812-rx-clear-mega-shock-73-calcium-hypochlorite-kills-algae-in)

---

*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-07-07*