---
product_id: 44424395
title: "Rx Clear Mega Shock | 73% Calcium Hypochlorite | One Pound Bags | 48 Pack"
brand: "rx clear"
price: "¥166675"
currency: JPY
in_stock: true
category: "Rx Clear"
url: https://www.desertcart.jp/products/44424395-rx-clear-mega-shock-73-calcium-hypochlorite-one-pound-bags
store_origin: JP
region: Japan
---

# Quick chlorine boost - fast-acting power Nighttime application - optimized performance 73% Calcium Hypochlorite - Ultra-strong sanitizer Rx Clear Mega Shock | 73% Calcium Hypochlorite | One Pound Bags | 48 Pack

**Brand:** rx clear
**Price:** ¥166675
**Availability:** ✅ In Stock

## Summary

> 💧 Shock your pool into perfection—because clear water is the new cool.

## Quick Answers

- **What is this?** Rx Clear Mega Shock | 73% Calcium Hypochlorite | One Pound Bags | 48 Pack by rx clear
- **How much does it cost?** ¥166675 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/44424395-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

- • **Algae Annihilator:** Double dose keeps your pool green-free and sparkling clean
- • **Smart Dosing System:** 1 lb per 10,000 gallons for easy, precise maintenance
- • **Nighttime Power Boost:** Apply after dark and swim worry-free in 8-10 hours
- • **Multi-Action Pool Savior:** Sanitizes, clarifies, and kills algae for crystal-clear water
- • **Ultra-Concentrated Formula:** 73% calcium hypochlorite delivers a powerful chlorine surge

## Overview

Rx Clear Mega Shock is a premium 73% calcium hypochlorite granular pool treatment designed for rapid sanitizing, clarifying, and algae control. Packaged in convenient 1-pound bags (48 count), it delivers a powerful chlorine boost to maintain crystal-clear, algae-free water. Ideal for above or in-ground pools, it works best when applied at night, ensuring your pool stays pristine and swim-ready within hours.

## Description

desertcart.com : Rx Clear Mega Shock | 73% Calcium Hypochlorite | One Pound Bags | 48 Pack | Kills Algae in Swimming Pools | Works As Pool Sanitizer Clarifier and Algicide : Patio, Lawn & Garden

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B073S9SD4P |
| Best Sellers Rank | #39,701 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #216 in Swimming Pool Chlorine |
| Brand Name | Rx Clear |
| Customer Reviews | 4.7 4.7 out of 5 stars (677) |
| Item Form | Granular |
| Item Weight | 48 pounds |
| Manufacturer | Rx Clear |
| Manufacturer Part Number | 20406348 |
| Model Number | 20406348 |
| Number of Items | 48 |
| Number of Packs | 48 |
| Product Benefits | Controls Algae, Maintains Clean Sanitized Water |
| UPC | 635963662035 |
| Unit Count | 768 Ounce |

## Product Details

- **Brand:** Rx Clear
- **Item Form:** Granular
- **Item Weight:** 48 pounds
- **Product Benefits:** Controls Algae, Maintains Clean Sanitized Water
- **UPC:** 635963662035

## Images

![Rx Clear Mega Shock | 73% Calcium Hypochlorite | One Pound Bags | 48 Pack - Image 1](https://m.media-amazon.com/images/I/71B+NVzvBYL.jpg)
![Rx Clear Mega Shock | 73% Calcium Hypochlorite | One Pound Bags | 48 Pack - Image 2](https://m.media-amazon.com/images/I/510fiM1TnOL.jpg)
![Rx Clear Mega Shock | 73% Calcium Hypochlorite | One Pound Bags | 48 Pack - Image 3](https://m.media-amazon.com/images/I/51EkxdTs+lL.jpg)
![Rx Clear Mega Shock | 73% Calcium Hypochlorite | One Pound Bags | 48 Pack - Image 4](https://m.media-amazon.com/images/I/51ZXVdCy66L.jpg)
![Rx Clear Mega Shock | 73% Calcium Hypochlorite | One Pound Bags | 48 Pack - Image 5](https://m.media-amazon.com/images/I/51MfJMg7uaL.jpg)

## Available Options

This product comes in different **Size** 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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**Shop now:** [https://www.desertcart.jp/products/44424395-rx-clear-mega-shock-73-calcium-hypochlorite-one-pound-bags](https://www.desertcart.jp/products/44424395-rx-clear-mega-shock-73-calcium-hypochlorite-one-pound-bags)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-11*