---
product_id: 742006954
title: "Rx Clear Mega Shock | 73% Calcium Hypochlorite | One Pound Bags | 12 Pack"
brand: "rx clear"
price: "$371.11"
currency: USD
in_stock: true
category: "Rx Clear"
url: https://www.desertcart.us/products/742006954-rx-clear-mega-shock-73-calcium-hypochlorite-one-pound-bags
store_origin: US
region: United States of America
---

# Quick chlorine boost - Fast-acting formula Nighttime application - Maximize shock efficiency 73% Calcium Hypochlorite - Ultra-strong sanitizer Rx Clear Mega Shock | 73% Calcium Hypochlorite | One Pound Bags | 12 Pack

**Brand:** rx clear
**Price:** $371.11
**Availability:** ✅ In Stock

## Summary

> 💧 Shock your pool back to life with Rx Clear Mega Shock!

## Quick Answers

- **What is this?** Rx Clear Mega Shock | 73% Calcium Hypochlorite | One Pound Bags | 12 Pack by rx clear
- **How much does it cost?** $371.11 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/742006954-rx-clear-mega-shock-73-calcium-hypochlorite-one-pound-bags)

## 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

- • **Smart Dosing:** Easy 1 lb per 10,000 gallons dosing ensures precise, hassle-free maintenance.
- • **Rapid Refresh:** Supercharge your pool’s chlorine levels instantly with a potent, fast-dissolving formula.
- • **Nighttime Ritual:** Apply after dark and enjoy swim-ready water by morning—because timing is everything.
- • **Algae Annihilator:** Dual-action algicide keeps your pool green-free and sparkling all season long.
- • **Power-Packed Purity:** 73% calcium hypochlorite delivers unmatched sanitizing strength for crystal-clear water.

## Overview

Rx Clear Mega Shock is a premium 73% calcium hypochlorite granular pool treatment designed for rapid sanitization, algae control, and water clarity. Each 1 lb bag treats up to 10,000 gallons, with optimal results when applied at night. Ideal for above or in-ground pools, this 12-pack ensures season-long maintenance with fast-acting, reliable performance.

## Description

A powerful, highly dense chlorinated shock treatment that will remove the green algae from your swimming pool water by just following the recommended dosage of this product. Be sure to pre-dissolve this powdered substance in a bucket of water before dispensing it around the perimeter of your swimming pool while your pump is running. NOTE: Cannot be sold or shipped to Maine.

## 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 |
|---------------|-------|
| ASIN | B00O92NRGO |
| Brand Name | Rx Clear |
| Customer Reviews | 4.7 4.7 out of 5 stars (459) |
| Item Form | Granular, Powder |
| Item Weight | 5.44 kg |
| Manufacturer | Rx Clear |
| Manufacturer Part Number | 20406312 |
| Model Number | 20406312 |
| Number of Items | 12 |
| Number of Packs | 12 |
| Package Size Name | 12 Pack |
| Product Benefits | Controls Algae |
| UPC | 617215599535 |
| Unit Count | 192.0 Ounce |

## Product Details

- **Brand:** Rx Clear
- **Item form:** Granular, Powder
- **Item weight:** 12 Pounds
- **Product benefits:** Controls Algae
- **UPC:** 617215599535

## Images

![Rx Clear Mega Shock | 73% Calcium Hypochlorite | One Pound Bags | 12 Pack - Image 1](https://m.media-amazon.com/images/I/712aio0OaXL.jpg)

## Available Options

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

## 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 | 48 Pack
- Rx Clear 3" Inch Stabilized Chlorine Tablets | 50 Pounds | Individual Chlorinating Tabs for Sanitizing Swimming Pools & Spas | Long Lasting, Slow Dissolving, and UV Protected
- Clorox® Pool&Spa™ Swimming Pool Algaecide and Clarifier, Prevents and Treats Pool Algae, Clears Water, 128 Fl Oz (Pack of 1)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-21*