---
product_id: 741604042
title: "Rx Clear Mega Shock | 73% Calcium Hypochlorite | Kills Algae in Swimming Pools | Works As Pool Sanitizer Clarifier and Algicide | One Pound Bags | 12 Pack"
brand: "rx clear"
price: "₨186406"
currency: LKR
in_stock: true
reviews_count: 5
category: "Rx Clear"
url: https://www.desertcart.lk/products/741604042-rx-clear-mega-shock-73-calcium-hypochlorite-kills-algae-in
store_origin: LK
region: Sri Lanka
---

# Nighttime application - Maximize shock efficiency 73% Calcium Hypochlorite - Ultra concentrated power Multi-purpose sanitizer & algicide - Total pool defense Rx Clear Mega Shock | 73% Calcium Hypochlorite | Kills Algae in Swimming Pools | Works As Pool Sanitizer Clarifier and Algicide | One Pound Bags | 12 Pack

**Brand:** rx clear
**Price:** ₨186406
**Availability:** ✅ In Stock

## Summary

> 💧 Shock your pool into perfection—because clear water waits for no one!

## 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 | 12 Pack by rx clear
- **How much does it cost?** ₨186406 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/741604042-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

- • **Smart Dosing System:** 1 lb per 10,000 gallons ensures precise, effective maintenance without waste.
- • **Algae-Free Guarantee:** Beat the green with 2 lbs per 14,000 gallons for a sparkling pool all season long.
- • **Triple-Action Formula:** Sanitizes, clarifies, and kills algae in one powerful treatment—your all-in-one pool solution.
- • **Nighttime Shock Advantage:** Apply after dark and enjoy a safe swim 8-10 hours later—optimized for your schedule.
- • **Ultra-Concentrated Chlorine Power:** 73% calcium hypochlorite delivers a rapid, deep clean for crystal-clear water.

## Overview

Rx Clear Mega Shock is a premium 73% calcium hypochlorite granular treatment designed to sanitize, clarify, and eliminate algae in swimming pools. Ideal for above or in-ground pools, it delivers fast-acting chlorine power with easy dosing instructions and works best when applied at night. Trusted by thousands for reliable, crystal-clear water maintenance.

## 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.

Review: Worked for me
Review: 73% Cal FTW!

## 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 | Rx Clear |
| Brand Name | Rx Clear |
| Customer Reviews | 4.7 out of 5 stars 433 Reviews |
| Item Form | Granular, Powder |
| Item Weight | 454 g |
| Item form | Granular, Powder |
| Item weight | 454 g |
| Manufacturer | Rx Clear |
| Product Benefits | Controls Algae |
| Product benefits | Controls Algae |
| UPC | 617215599535 |
| Unit Count | 192.0 Grams |
| Unit count | 192.0 Grams |

## Product Details

- **Brand:** Rx Clear
- **Item form:** Granular, Powder
- **Item weight:** 454 g
- **Product benefits:** Controls Algae
- **UPC:** 617215599535

## Images

![Rx Clear Mega Shock | 73% Calcium Hypochlorite | Kills Algae in Swimming Pools | Works As Pool Sanitizer Clarifier and Algicide | One Pound Bags | 12 Pack - Image 1](https://m.media-amazon.com/images/I/71BoV93eQcL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked for me
*by G***N on 15 July 2025*



### ⭐⭐⭐⭐⭐ 73% Cal FTW!
*by B***Y on 13 July 2025*



### ⭐⭐⭐⭐⭐ Excellent shock.
*by B***P on 6 August 2024*



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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-17*