---
product_id: 555370280
title: "WaterGuru 2-1901-28BX Calcium Hypochlorite Chlorine Shock Treatment for Swimming Pools, 28-Pack"
brand: "drytec"
price: "₩111964"
currency: KRW
in_stock: true
reviews_count: 6
url: https://www.desertcart.kr/products/555370280-waterguru-2-1901-28bx-calcium-hypochlorite-chlorine-shock-treatment-swimming
store_origin: KR
region: South Korea
---

# WaterGuru 2-1901-28BX Calcium Hypochlorite Chlorine Shock Treatment for Swimming Pools, 28-Pack

**Brand:** drytec
**Price:** ₩111964
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** WaterGuru 2-1901-28BX Calcium Hypochlorite Chlorine Shock Treatment for Swimming Pools, 28-Pack by drytec
- **How much does it cost?** ₩111964 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/555370280-waterguru-2-1901-28bx-calcium-hypochlorite-chlorine-shock-treatment-swimming)

## Best For

- drytec enthusiasts

## Why This Product

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

## Description

Powdered 68% Calcium Hypochlorite Shock is an extra-powerful start-up and maintenance shock that helps to improve the appearance of your pool by removing and preventing algae growth. WaterGuru Powdered Shock removes organic waste and raises chlorine level, producing sparkling, clean swimming pool water. Kills bacteria, controls algae, destroys organic contaminants and restores crystal clarity. This is the ideal product for a super-fast acting chlorine boost to give your pool shocking clarity. DIRECTIONS FOR USE: This shock is to be dispersed in the pool water. WARNING: Not intended for us in any type of chlorinator.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | DryTec |
| Item Weight | 16 ounces |
| Item Form | Powder |
| Product Benefits | Kills bacteria, controls algae, and maintains clear, clean pool water |
| UPC | 034261182359 |
| Number of Items | 28 |
| Unit Count | 448.0 Ounce |
| Product Dimensions | 14 x 14 x 14 inches |
| Item Weight | 1 pounds |
| Manufacturer | Dry Tec |
| ASIN | B0C11SSQG4 |
| Item model number | 2-1901-28BX |
| Date First Available | March 30, 2023 |

## Product Details

- **Brand:** DryTec
- **Item Weight:** 16 ounces
- **Item Form:** Powder
- **Product Benefits:** Kills bacteria, controls algae, and maintains clear, clean pool water
- **UPC:** 034261182359

## Images

![WaterGuru 2-1901-28BX Calcium Hypochlorite Chlorine Shock Treatment for Swimming Pools, 28-Pack - Image 1](https://m.media-amazon.com/images/I/71qsmfZmTCL.jpg)
![WaterGuru 2-1901-28BX Calcium Hypochlorite Chlorine Shock Treatment for Swimming Pools, 28-Pack - Image 2](https://m.media-amazon.com/images/I/61j2lpvCIrL.jpg)
![WaterGuru 2-1901-28BX Calcium Hypochlorite Chlorine Shock Treatment for Swimming Pools, 28-Pack - Image 3](https://m.media-amazon.com/images/I/7117MPb39CL.jpg)
![WaterGuru 2-1901-28BX Calcium Hypochlorite Chlorine Shock Treatment for Swimming Pools, 28-Pack - Image 4](https://m.media-amazon.com/images/I/71TI12ns8TL.jpg)

## Questions & Answers

**Q: Is this product suitable for home well-water purification systems???**
A: The Drytec product is labeled and certified by NSF for drinking water applications. Use only as directed.

**Q: Is there a shelf life for this?**
A: Everything I have read states that it should keep for decades.  I stuffed mine in a sealed wide mouth nalgene liter bottle, wrapped it in plastic and put it in storage for emergency water treatment.  If the powder gets damp or wet, all bets are off as it will outgas chlorine, corrode some metals, and could cause a fire.  Be careful, especially around kids.  It can cause blindness and worse.

**Q: When can I swim after using this product?**
A: We put the shock in at night and swim in the morning.

**Q: is the price for 1 bag? b/c if it is it makes no sense that the mark up be 5X what the usual mark up is? please explain**
A: Ordering one bag is not cost effective as the seller has to pay for the shipment.  If you order a case of 12 price, the goes down to about $4/bag. Ordering a box of 24 is the most cost effective as you get each bag for much less...

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great stuff
*by C***Y on September 29, 2023*

not happy about the packaging, but i used it anyway and Love it

### ⭐ Mess
*by D***E on February 22, 2024*

Box arrived with powder all over. And appeared to be water or some kind of moisture damage. Only guys thing to say is I got a refund. I wish I had taken a picture

### ⭐⭐ what a mess
*by C***N on May 1, 2024*

all stuck together box was in abox falling apart like glue was spilled or melted from heat

## Frequently Bought Together

- WaterGuru 2-1901-14BX Calcium Hypochlorite Chlorine Shock Treatment for Swimming Pools, 14-Pack
- Clorox® Pool&Spa™ Swimming Pool Algaecide and Clarifier, Prevents and Treats Pool Algae, Clears Water, 128 Fl Oz (Pack of 1)
- DryTec 1-1901-24 Calcium Hypochlorite Chlorine Shock Treatment for Swimming Pools, 1-Pound, 24-Pack

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**Shop now:** [https://www.desertcart.kr/products/555370280-waterguru-2-1901-28bx-calcium-hypochlorite-chlorine-shock-treatment-swimming](https://www.desertcart.kr/products/555370280-waterguru-2-1901-28bx-calcium-hypochlorite-chlorine-shock-treatment-swimming)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-29*