---
product_id: 638444715
title: "52030B Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (Pack of 6)"
brand: "hth"
price: "¥17869"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/638444715-52030b-swimming-pool-care-shock-swimming-pool-chlorinator-boosts-chlorine
store_origin: JP
region: Japan
---

# Fast-acting shock treatment Clarifies & sanitizes pool water Cal Hypo formula prevents chlorine lock 52030B Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (Pack of 6)

**Brand:** hth
**Price:** ¥17869
**Availability:** ✅ In Stock

## Summary

> 💦 Shock your pool to brilliance — because clear water is the new status symbol!

## Quick Answers

- **What is this?** 52030B Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (Pack of 6) by hth
- **How much does it cost?** ¥17869 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/638444715-52030b-swimming-pool-care-shock-swimming-pool-chlorinator-boosts-chlorine)

## Best For

- hth enthusiasts

## Why This Product

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

## Key Features

- • **Tested & Trusted:** Pairs perfectly with HTH 6-Way Test Strips for precise water balance 🧪
- • **Crystal Clear Every Swim:** Sanitizes and clarifies without adding cyanuric acid, avoiding chlorine lock 💧
- • **Shock Your Pool Back to Life:** Fast-dissolving formula tackles 90% of water issues within 24 hours ⚡
- • **Universal Pool Compatibility:** Safe for all pool types including vinyl-lined and saltwater systems 🌊
- • **Effortless Weekly Maintenance:** Simple weekly use keeps bacteria and algae at bay for a sparkling pool ✨

## Overview

HTH 52030B Swimming Pool Care Shock is a fast-acting, Cal Hypo-based chlorine booster designed to sanitize, clarify, and prevent bacteria and algae in all pool types. This 13.3oz pack of 6 treats 90% of common pool water problems within 24 hours without causing chlorine lock, ensuring a visibly brilliant sparkle every swim.

## Description

52030B Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (Pack of 6)

## Features

- BENEFIT: Shock treat, sanitize, clarify, and help prevent bacteria and algae in your swimming pool water, all with this convenient, easy-to-use product
- FEATURES: Multi-use pool shock with Cal Hypo; Use weekly to solve 90% of pool water problems within 24 hours; Fast-acting and fast-dissolving
- VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock
- COMPATIBLE WITH ALL SWIMMING POOLS: This product is great for all pool types including vinyl-lined pools and saltwater systems
- YOU’RE ALL CLEAR WITH HTH: For best results, use with HTH 6-Way Test Strips to test and balance your swimming pool water twice weekly

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Size | No Size |
| Style | Chlorine |
| Material Type | Plastic |
| Number of Items | 1 |
| Power Source | hand_powered |
| Included Components | HTH 52030 Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (Pack of 6) |
| Brand | HTH |
| Department | Unisex-Adult |
| Manufacturer | Innovative Water Care |
| Item model number | 52030 |
| Product Dimensions | 10.8 x 27.64 x 26.67 cm; 377.05 g |
| ASIN | B09R82PPNS |

## Product Details

- **Brand:** HTH
- **Item weight:** 13.3 Ounces
- **Item form:** Granular
- **Product benefits:** Kills Bacteria
- **UPC:** 073187520302

## Images

![52030B Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (Pack of 6) - Image 1](https://m.media-amazon.com/images/I/81+p0IiKlFL.jpg)

## Questions & Answers

**Q: Chlorine shock**
A: We are the manufacturer of HTH® Pool Care Shock, yes this is a chlorine shock that can be used once a week or more often if needed. If you have any questions, please give us a call at 866-484-7665!

**Q: Can this be used for initial pool set up?  Or is this only for maintaining after initial set up?**
A: The HTH Pool Care Shock is for both initial opening of your pool as well as daily/weekly maintenance.  You will always want to maintain a chlorine level of 1-4 PPM.  Use the HTH Pool Care 6-1 Test Strips to ensure that your water chemistry is balanced so the safest and cleanest water.  If you need help with this, or more product information, feel free to reach out to our Consumer Engagement Team at 866-484-7665. We're "Here To Help", Monday - Friday, 9 AM - 7 PM ET.

**Q: Can this be used in hot tubs?**
A: There are smaller containers of shock that are reclosable and more convenient for the spa/hot tub.  This package is meant for use in a large volume of water/one time use and should not be divided as the product could retain moisture or become contaminated and cause some off-gassing.  Look for the shock in bottles with a lid specifically for spas, hot tubs and small pools.  If you have further questions, give our team a  call at 866-484-7665.

**Q: I used it as my free chlorine was low - total chlorine was OK with ph and acy. However I got no chlorine reading after double dosage shock. Why?**
A: It could be too much and it bleached out your test strip.  Let it circulate for an hour or so and test again.

## Frequently Bought Together

- HTH 52030B Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (Pack of 6)
- Clorox Pool&Spa XTRABLUE 3” Chlorinating Tablets, Individually Wrapped, Kills Bacteria & Stops Algae (5 LB)
- Clorox® Pool&Spa™ Swimming Pool Algaecide, Prevents and Treats Pool Algae, Non-Foaming, 1 Quart (Pack of 1)

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**Shop now:** [https://www.desertcart.jp/products/638444715-52030b-swimming-pool-care-shock-swimming-pool-chlorinator-boosts-chlorine](https://www.desertcart.jp/products/638444715-52030b-swimming-pool-care-shock-swimming-pool-chlorinator-boosts-chlorine)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-23*