---
product_id: 712880616
title: "Rx Clear Mega Shock | 73% Calcium Hypochlorite | Kills Algae in Swimming Pools | Works As Pool Sanitizer Clarifier and Algicide | One Pound Bags | Single Pack"
brand: "rx clear"
price: "A$81"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/712880616-rx-clear-mega-shock-73-calcium-hypochlorite-kills-algae-in
store_origin: AU
region: Australia
---

# Fast Acting - Quick Chlorine Boost & Algae Control Multi-Action Formula - Sanitizer, Clarifier & Algicide 73% Calcium Hypochlorite - Ultra Concentrated Power Rx Clear Mega Shock | 73% Calcium Hypochlorite | Kills Algae in Swimming Pools | Works As Pool Sanitizer Clarifier and Algicide | One Pound Bags | Single Pack

**Brand:** rx clear
**Price:** A$81
**Availability:** ✅ In Stock

## Summary

> 💧 Shock Your Pool Into Crystal Clarity – Because Clear is the New Cool!

## 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 | Single Pack by rx clear
- **How much does it cost?** A$81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/712880616-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 smart, efficient pool maintenance.
- • **Nighttime Application:** Maximize results by shocking your pool after dark for crystal-clear water by morning.
- • **Triple-Action Pool Care:** Sanitize, clarify, and eliminate algae with one powerful formula.
- • **Ultra-Concentrated Shock:** 73% calcium hypochlorite delivers rapid and effective chlorine boost.
- • **Season-Ready Algae Defense:** Use 2 lbs per 14,000 gallons to beat green algae and open your pool with confidence.

## Overview

Rx Clear Mega Shock is a high-strength 73% calcium hypochlorite granular pool treatment that sanitizes, clarifies, and kills algae. Designed for above or in-ground pools, it delivers fast-acting chlorine boosts and algae control with easy dosing instructions. Ideal for nighttime application, it ensures sparkling, algae-free water and hassle-free pool maintenance.

## Description

Rx Clear Mega Shock | 73% Calcium Hypochlorite | Kills Algae in Swimming Pools | Works As Pool Sanitizer Clarifier and Algicide | One Pound Bags | Single Pack

## Features

- MULTI-PURPOSE - This swimming pool shock works as a strong sanitizer, clarifier, and algicide for clear blue water.
- EXTRA POWER - Due to its high percentage of chlorine, Mega Shock is a very effective treatment for a quick chlorine boost. The Rx Clear Mega shock packets are chlorinating essentials.
- MIX BEFORE YOU FIX - Add this granular powder to a bucket of water before you begin dissolving it in your pool. Add a 1 lb bag per 10,000 gallons of pool water for smart maintenance.
- BEAT THE GREEN - Keep in your swimming pool algae free by adding 2 bags (2 lbs) of shock per 14,000 gallons of pool water. These granules work as an algaecide if your pool needs cleaning, or if you're opening for the season.
- WORKS BEST AT NIGHT - Maximize performance by adding this shock to your pool at night. Wait to swim 8 to 10 hours after you start the application. Trust Rx Clear to supply reliable chemicals, supplies, and equipment for your above or in ground pool, spa or hot tub.
- NOTE: Cannot be sold or shipped to Maine.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions | 26.29 x 10.49 x 3.99 cm; 453.59 g |
| Manufacturer | Rx Clear |
| ASIN | B00O92NRGY |

## Product Details

- **Brand:** Rx Clear
- **Item weight:** 1 Pounds
- **Item form:** Granular, Powder
- **Product benefits:** Controls Algae
- **UPC:** 078399255516

## Images

![Rx Clear Mega Shock | 73% Calcium Hypochlorite | Kills Algae in Swimming Pools | Works As Pool Sanitizer Clarifier and Algicide | One Pound Bags | Single Pack - Image 1](https://m.media-amazon.com/images/I/81AmEqkKSdL.jpg)

## Available Options

This product comes in different **Color** 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 | Single Pack
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- Clorox Pool&Spa XTRABLUE 3” Chlorinating Tablets, Individually Wrapped, Kills Bacteria & Stops Algae (5 LB)

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**Shop now:** [https://www.desertcart.com.au/products/712880616-rx-clear-mega-shock-73-calcium-hypochlorite-kills-algae-in](https://www.desertcart.com.au/products/712880616-rx-clear-mega-shock-73-calcium-hypochlorite-kills-algae-in)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-25*