---
product_id: 619738877
title: "CrystalClear® Ultimate Chlorine Shock Granules for Hot Tubs & Swimming Pools 1kg - Calcium Hypochlorite (Cal-Hypo)."
brand: "crystalclear"
price: "€ 55.35"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/619738877-crystalclear-ultimate-chlorine-shock-granules-for-hot-tubs-and-swimming
store_origin: FI
region: Finland
---

# 10.16 x 10.16 x 20.32 cm 70% CI active 1kg potency CrystalClear® Ultimate Chlorine Shock Granules for Hot Tubs & Swimming Pools 1kg - Calcium Hypochlorite (Cal-Hypo).

**Brand:** crystalclear
**Price:** € 55.35
**Availability:** ✅ In Stock

## Summary

> ✨ Dive into Crystal Clear Waters!

## Quick Answers

- **What is this?** CrystalClear® Ultimate Chlorine Shock Granules for Hot Tubs & Swimming Pools 1kg - Calcium Hypochlorite (Cal-Hypo). by crystalclear
- **How much does it cost?** € 55.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/619738877-crystalclear-ultimate-chlorine-shock-granules-for-hot-tubs-and-swimming)

## Best For

- crystalclear enthusiasts

## Why This Product

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

## Key Features

- • **Optimal pH Performance:** Ensures your water stays within the perfect range.
- • **Ultimate Water Clarity:** Transform dull water into a sparkling oasis.
- • **Algae's Worst Nightmare:** Effectively eliminates algal infestations.
- • **User-Friendly Application:** Dissolve and distribute with ease.
- • **Routine Maintenance Made Simple:** Shock your pool or hot tub every two weeks.

## Overview

CrystalClear® Ultimate Chlorine Shock Granules are a powerful 1kg solution designed to maintain the clarity and hygiene of your hot tub or swimming pool. With a minimum of 70% active chlorine, these granules effectively combat algae and swimmer waste, ensuring your water remains inviting and safe. Ideal for regular use, they are easy to apply and help maintain optimal pH levels for the best swimming experience.

## Description

CrystalClear® Ultimate Chlorine Shock Granules for Hot Tubs & Swimming Pools 1kg - Calcium Hypochlorite (Cal-Hypo).

## Features

- CrystalClear Ultimate Granular Shock Chlorine is a highly concentrated chlorine (min 70% CI active) that is used to shock your swimming pool or hot tub water on a regular basis. This should be done every two weeks or more frequently during hot weather or if the water in your pool or hot tub turns green.
- Granular Shock Chlorine is highly effective at removing algal infestations and adding the sparkle back to dull and hazy water. The product can also be used if the pool or hot tub has been neglected, if algae has grown on the pool or hot tub's floors and walls, or if there has been an unusually high bather load.
- It is highly recommended to dissolve the granules first in a large clean bucket of warm tap water first before adding to you pool or tub. This way you can see that the granules have dissolved fully, then simply add the bucket solution to your pool or hot tub. Do not exceed more than 100g per 10 litres of warm bucket water. Stir well to ensure complete dissolving of the granules and add solution to pool or tub while the pump/jets ares turned on to aid distribution in the water. Repeat application if necessary.
- pH levels should be within the recommended range of 7.2-7.6 for optimal results. If the level does not fall within this range, make adjustments. Keep free chlorine at the recommended levels: 1–3mg/l (ppm) for pools and 3-5mg/l (ppm) for hot tubs. Shock or oxidising operations should be performed weekly or fortnightly, with a maximum of 10mg/l (ppm) for a complete shock treatment.
- Helps to prevent and remove algae and destroy swimmer waste. Can be used for routine disinfecting.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 10.16 x 10.16 x 20.32 cm; 1 kg |
| Part number | CC/USHO/1KG |
| Manufacturer | Pool, Spa & Hot Tub Supplies |
| Item model number | CC/USHO/1KG |
| ASIN | B0CZPJ2R7X |

## Images

![CrystalClear® Ultimate Chlorine Shock Granules for Hot Tubs & Swimming Pools 1kg - Calcium Hypochlorite (Cal-Hypo). - Image 1](https://m.media-amazon.com/images/I/71CJlfg16QL.jpg)
![CrystalClear® Ultimate Chlorine Shock Granules for Hot Tubs & Swimming Pools 1kg - Calcium Hypochlorite (Cal-Hypo). - Image 2](https://m.media-amazon.com/images/I/717pPbGNv-L.jpg)
![CrystalClear® Ultimate Chlorine Shock Granules for Hot Tubs & Swimming Pools 1kg - Calcium Hypochlorite (Cal-Hypo). - Image 3](https://m.media-amazon.com/images/I/81FlGtqBUaL.jpg)
![CrystalClear® Ultimate Chlorine Shock Granules for Hot Tubs & Swimming Pools 1kg - Calcium Hypochlorite (Cal-Hypo). - Image 4](https://m.media-amazon.com/images/I/81MMFYjLFDL.jpg)

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**Shop now:** [https://www.desertcart.fi/products/619738877-crystalclear-ultimate-chlorine-shock-granules-for-hot-tubs-and-swimming](https://www.desertcart.fi/products/619738877-crystalclear-ultimate-chlorine-shock-granules-for-hot-tubs-and-swimming)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-01-24*