---
product_id: 1614851
title: "Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 12 X 1 Pound"
brand: "in the swim"
price: "€ 111.41"
currency: EUR
in_stock: true
reviews_count: 8
category: "In The Swim"
url: https://www.desertcart.ie/products/1614851-pool-shock-68-cal-hypo-granular-sanitizer-for-crystal-clear
store_origin: IE
region: Ireland
---

# 68% Cal-Hypo fast-acting shock 65% available chlorine for crystal-clear water Versatile for pools, spas & hot tubs Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 12 X 1 Pound

**Brand:** in the swim
**Price:** € 111.41
**Availability:** ✅ In Stock

## Summary

> 💦 Shock Your Pool Into Perfection – Because Crystal Clear is the New Cool!

## Quick Answers

- **What is this?** Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 12 X 1 Pound by in the swim
- **How much does it cost?** € 111.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/1614851-pool-shock-68-cal-hypo-granular-sanitizer-for-crystal-clear)

## Best For

- in the swim enthusiasts

## Why This Product

- Trusted in the swim brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safe & Simple Application:** Pre-dissolve granules to protect liners and evenly distribute for maximum sanitization.
- • **Universal Pool Compatibility:** Perfect for above ground, in-ground pools, spas, and hot tubs—flexible and easy to use.
- • **Crystal-Clear Water Guarantee:** 65% available chlorine ensures sparkling clarity and a refreshing swim every time.
- • **Effortless Weekly Maintenance:** Just 1 pound per 10,000 gallons maintains optimal 5-10 ppm chlorine levels—stay ahead of algae and germs.
- • **Rapid Algae & Bacteria Defense:** Powerful 68% calcium hypochlorite formula eliminates contaminants fast, keeping your pool pristine.

## Overview

In The Swim Pool Shock delivers a potent 68% calcium hypochlorite granular sanitizer with 65% available chlorine, designed for fast-acting algae and bacteria control. Suitable for all pool types and spas, it ensures crystal-clear water with easy weekly dosing and safe application methods, making it the go-to choice for professional-grade pool maintenance.

## Description

desertcart.com : In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 12 X 1 Pound : Pool Shock Packets : Patio, Lawn & Garden

Review: Fantastic Product - The package was originally mailed on time, but tracking showed that there was a problem with shipping, and it was rerouted back to the seller. I had to reach out several times. They responded saying that another order would be sent, but I never received a new tracking or order number, even though I had paid for it and needed it weeks ago. It finally arrived. I love this stuff and have ordered from the same seller in the past without any trouble. That is why they still got 5 stars. It goes a long way since it is a strong concentrate meant to be diluted. I use it around the house and farm, and occasionally to treat my camping and hiking gear.
Review: Good price - Good product at a good price

## Features

- Fast-Acting Algae Control: Calcium Hypochlorite (Cal-Hypo) is an effective non-stabilized chlorine shock treatment, ideal for routine maintenance in your swimming pool
- Versatile Use: Suitable for above ground or in-ground swimming pools, spas, and hot tubs; Pre-dissolve or dilute to avoid bleaching the liner
- High Chlorine Content: 65% available chlorine, provides powerful sanitization for crystal-clear water
- Easy Application: Pre-dissolve or dilute to avoid bleaching swimming pool liners; Spread granules in the deepest part of the pool; Brush if needed
- Dosage: Use 1 Pound per 10,000 gallons weekly to maintain 5-10 ppm chlorine levels

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002WKQ3IE |
| Best Sellers Rank | #366 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #7 in Swimming Pool Chlorine |
| Brand | In The Swim |
| Customer Reviews | 4.7 4.7 out of 5 stars (15,785) |
| Is Discontinued By Manufacturer | No |
| Item Form | Granular |
| Item Weight | 13.1 pounds |
| Item model number | 25235 12X1 |
| Manufacturer | In The Swim Discount Pool Supplies |
| Number of Items | 12 |
| Product Benefits | Kills Bacteria, Maintains Clean Sanitized Water |
| Product Dimensions | 10.8 x 9.9 x 5.3 inches |
| Unit Count | 192 Ounce |

## Product Details

- **Brand:** In The Swim
- **Item Form:** Granular
- **Item Weight:** 13.1 Pounds
- **Number of Items:** 12
- **Product Benefits:** Kills Bacteria, Maintains Clean Sanitized Water

## Images

![Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 12 X 1 Pound - Image 1](https://m.media-amazon.com/images/I/71F49S1omNL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fantastic Product
*by J***W on September 7, 2025*

The package was originally mailed on time, but tracking showed that there was a problem with shipping, and it was rerouted back to the seller. I had to reach out several times. They responded saying that another order would be sent, but I never received a new tracking or order number, even though I had paid for it and needed it weeks ago. It finally arrived. I love this stuff and have ordered from the same seller in the past without any trouble. That is why they still got 5 stars. It goes a long way since it is a strong concentrate meant to be diluted. I use it around the house and farm, and occasionally to treat my camping and hiking gear.

### ⭐⭐⭐⭐⭐ Good price
*by F***L on January 23, 2026*

Good product at a good price

### ⭐⭐⭐⭐⭐ Comparable to name brands
*by S***T on February 14, 2026*

Very comparable to name brands it removes algae and keeps algae out of your pool keeps chlorine levels where they need to be and the durability is great

## Frequently Bought Together

- In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 12 X 1 Pound
- In The Swim 3 Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools - Individually Wrapped, Slow Dissolving - 90% Available Chlorine - Tri-Chlor - 10 Pounds
- 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.ie/products/1614851-pool-shock-68-cal-hypo-granular-sanitizer-for-crystal-clear](https://www.desertcart.ie/products/1614851-pool-shock-68-cal-hypo-granular-sanitizer-for-crystal-clear)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-17*