---
product_id: 316425977
title: "Leslie's Power Powder Plus 73-73% Calcium Hypochlorite Pool Shock, Fast-Dissolving Chlorine Granules, Eliminates Bacteria & Algae - Low Residue, Non-Stabilized, 70% Available Chlorine - 12 x 1 Pound"
brand: "leslie's"
price: "€ 220.69"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.hr/products/316425977-leslies-power-powder-plus-73-73-calcium-hypochlorite-pool-shock
store_origin: HR
region: Croatia
---

# 73% Calcium Hypochlorite - ultra concentrated power Fast-dissolving granules - rapid pool clarity 70% available chlorine - superior bacteria & algae kill Leslie's Power Powder Plus 73-73% Calcium Hypochlorite Pool Shock, Fast-Dissolving Chlorine Granules, Eliminates Bacteria & Algae - Low Residue, Non-Stabilized, 70% Available Chlorine - 12 x 1 Pound

**Brand:** leslie's
**Price:** € 220.69
**Availability:** ✅ In Stock

## Summary

> 💥 Shock your pool into crystal-clear perfection—because your swim deserves the best!

## Quick Answers

- **What is this?** Leslie's Power Powder Plus 73-73% Calcium Hypochlorite Pool Shock, Fast-Dissolving Chlorine Granules, Eliminates Bacteria & Algae - Low Residue, Non-Stabilized, 70% Available Chlorine - 12 x 1 Pound by leslie's
- **How much does it cost?** € 220.69 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/316425977-leslies-power-powder-plus-73-73-calcium-hypochlorite-pool-shock)

## Best For

- leslie's enthusiasts

## Why This Product

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

## Key Features

- • **Fast-Dissolving Formula:** Quickly clears your pool with minimal residue—no waiting, just swimming.
- • **Low Calcium Hardness Impact:** Maintains balanced water chemistry without raising calcium levels.
- • **Versatile Super Chlorination:** Use 9-18 oz per 10,000 gallons to crush algae blooms or routine maintenance.
- • **Non-Stabilized for Evening Use:** No cyanuric acid means no UV stabilizer buildup—perfect for nighttime treatments.
- • **Ultra-Concentrated Shock Power:** Harness 73% Calcium Hypochlorite for rapid, deep sanitization.

## Overview

Leslie's Power Powder Plus 73 delivers a potent 73% Calcium Hypochlorite formula with 70% available chlorine, designed for fast-acting elimination of bacteria, algae, and contaminants. Its fast-dissolving, low-residue granules maintain balanced calcium hardness and contain no cyanuric acid, making it ideal for evening use and super chlorination. Trusted by pool pros and enthusiasts alike, it ensures your pool stays sparkling clean and safe with every use.

## Description

Leslie's Power Powder Plus 73 is the strongest chlorine pool shock available, designed to keep your pool water crystal clear and safe. With 73% Calcium Hypochlorite and a minimum of 70% available chlorine, this concentrated granular shock effectively kills bacteria, controls algae, and eliminates organic contaminants. It's ideal for both super chlorination and routine maintenance, providing a fast-acting solution for a wide range of pool problems. Power Powder Plus 73 dissolves quickly and leaves minimal residue, ensuring thorough sanitization without significantly increasing calcium hardness levels in your pool water. As a non-stabilized chlorine shock, it contains no cyanuric acid, meaning it won’t raise stabilizer levels, making it perfect for evening use to reduce UV degradation. Whether you’re dealing with a severe algae bloom or just need a routine chlorine boost, Leslie's Power Powder Plus 73 is your go-to solution for maintaining a clean and healthy swimming environment. Add 9-18 oz. per 10,000 gallons for super chlorination or 3 oz. per 10,000 gallons for routine maintenance to achieve 5-10 ppm available chlorine. Safe for use in all pool types, this powerful pool shock is an essential tool in your pool care arsenal.

Review: Excellent after Arizona dust storms - We have been using this product for years! Tried a different product to save money, but ended up with a terrible algae problem! This product along with another got the pool back in shape! I was purchasing this locally, however it was more expensive at the brick and mortar Leslie's. It's a better price here and it's delivered to your door!!! That's a win win for me. No more lugging it home and a better price point.
Review: Shock - Good product Purchase price less than in store

## Features

- 73% Calcium Hypochlorite with 70% available chlorine kills bacteria, algae, and contaminants.
- Quick action with minimal residue, won’t significantly raise calcium hardness.
- Ideal for super chlorination and routine maintenance, tackles tough algae blooms.
- No cyanuric acid, won’t raise stabilizer levels, perfect for evening use.
- Use 9-18 oz. per 10,000 gallons for 5-10 ppm available chlorine.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0892ZX87X |
| Best Sellers Rank | #189,857 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #550 in Swimming Pool Chlorine |
| Brand Name | Leslie's |
| Customer Reviews | 4.7 4.7 out of 5 stars (449) |
| Item Form | Granular |
| Item Weight | 2 Pounds |
| Manufacturer | Leslie's |
| Manufacturer Warranty Description | INNOVATIVE WATER CARE GLOBAL |
| Product Benefits | Contaminants |
| UPC | 803354146796 |
| Unit Count | 192.0 Ounce |

## Product Details

- **Brand:** Leslie's
- **Item Form:** Granular
- **Item Weight:** 2 Pounds
- **Product Benefits:** Contaminants
- **UPC:** 803354146796

## Images

![Leslie's Power Powder Plus 73-73% Calcium Hypochlorite Pool Shock, Fast-Dissolving Chlorine Granules, Eliminates Bacteria & Algae - Low Residue, Non-Stabilized, 70% Available Chlorine - 12 x 1 Pound - Image 1](https://m.media-amazon.com/images/I/71V76ZdLdxL.jpg)

## Questions & Answers

**Q: Thank you, My pool was clear before I put this in. that stuff doesn't dissolve. Have to use clarifier after using this product?**
A: Dump into a bucket of water from pool and dissolve then walk around pool adding the contents of bucket into your pool, if you stir the shock in bucket for a few minutes it dissolves.

**Q: Can i use it for salt system? i heard we cant shock salt pools with calcium products**
A: It is recommended you dissolve the shock in a bucket of water first, this product is very good when opening pool, green water. The salt System will not clear the water by It self.

**Q: Is the sale price for 12 packs of the 1 lb shock, 6 packs or just each 1 lb item?**
A: You receive 12 one pound packs.

**Q: Is this good for vinyl pools?**
A: Use Leslie's Chlor-Brite for long term pool maintenance. Pow Pow is strong enough to kill algae, but may ruin vinyl pools. You may use Pow Pow a few times a year for vinyl pool, but it is not recommended as it may ruin the vinyl lining. If you do use it, brush it around until it dissolves. I service pools for a living.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent after Arizona dust storms
*by N***B on September 12, 2023*

We have been using this product for years! Tried a different product to save money, but ended up with a terrible algae problem! This product along with another got the pool back in shape! I was purchasing this locally, however it was more expensive at the brick and mortar Leslie's. It's a better price here and it's delivered to your door!!! That's a win win for me. No more lugging it home and a better price point.

### ⭐⭐⭐⭐⭐ Shock
*by A***R on August 1, 2025*

Good product Purchase price less than in store

### ⭐⭐⭐⭐⭐ Pool Shock
*by R***N on June 29, 2025*

Shock works gteat

## Frequently Bought Together

- Leslie's Power Powder Plus 73-73% Calcium Hypochlorite Pool Shock, Fast-Dissolving Chlorine Granules, Eliminates Bacteria & Algae - Low Residue, Non-Stabilized, 70% Available Chlorine - 12 x 1 Pound
- Coral Seas Green Aid Green To Clean - 2 lbs.
- Leslie's 3 Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools - Individually Wrapped, Slow Dissolving - 90% Available Chlorine - 99% Tri-Chlor - 10 Pounds

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---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-04-25*