---
product_id: 628560567
title: "Yellow Out Swimming Pool Chlorine Shock Enhancing Treatment - 2 lbs."
brand: "coral seas"
price: "₩131388"
currency: KRW
in_stock: true
url: https://www.desertcart.kr/products/628560567-yellow-out-swimming-pool-chlorine-shock-enhancing-treatment-2-lbs
store_origin: KR
region: South Korea
---

# Boosts chlorine shock efficiency Gentle algae removal without harsh chemicals Works at high pH & cyanuric acid levels Yellow Out Swimming Pool Chlorine Shock Enhancing Treatment - 2 lbs.

**Brand:** coral seas
**Price:** ₩131388
**Availability:** ✅ In Stock

## Summary

> 🌊 Shock your pool into perfection—because your summer deserves flawless clarity!

## Quick Answers

- **What is this?** Yellow Out Swimming Pool Chlorine Shock Enhancing Treatment - 2 lbs. by coral seas
- **How much does it cost?** ₩131388 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/628560567-yellow-out-swimming-pool-chlorine-shock-enhancing-treatment-2-lbs)

## Best For

- coral seas enthusiasts

## Why This Product

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

## Key Features

- • **High pH Performance:** Optimized to work best at pH 7.8+, unlike traditional treatments
- • **Multi-Algae Defense:** Effectively removes green, yellow, brown, and pink algae for crystal-clear water
- • **Safe for All Surfaces:** Non-toxic formula safe on vinyl liners, plaster, and more
- • **Effortless Algae Control:** No brushing needed—just add and watch algae vanish
- • **Chlorine Generator Friendly:** Perfectly compatible with salt chlorine systems for seamless pool care

## Overview

Yellow Out Swimming Pool Chlorine Shock Enhancing Treatment is a 2 lb powerhouse designed to amplify chlorine shock treatments by working efficiently at higher pH levels and cyanuric acid concentrations. Compatible with all pool types including salt chlorine generators and plaster finishes, it safely and gently eliminates multiple algae types without harsh chemicals, ensuring sparkling clean water and protecting all pool surfaces.

## Description

Use 2 lbs of Yellow Out per 15,000 gallons of water prior to shock treatment with an EPA-registered chlorine that kills yellow algae. Yellow Out works great for all pools, including those with salt chlorine generators and plaster finishes. Both of these circumstances can create a higher pH in pool water (especially newer plaster), which happens to be the ideal condition in which Coral Seas products work. The recommended pH level is 7.8 or higher for ideal performance. This is opposite of traditional algae treatment methods which require a lower pH for chlorine to be more efficient. Yellow Out are also not affected by higher levels of cyanuric acid.

## Features

- Compatible with pools operating a chlorine generator
- Simple to use, requires no brushing, and cleans up algae gently without the use of harsh chemicals
- Used in conjunction with pool shock to safely remove green, yellow, brown, and pink algae from your pool
- Safe, non-toxic and can be used on all pool surfaces, including vinyl liners

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Color | Multicolor |
| Size | 2 lbs |
| Height | 3.7 inches |
| Length | 6 inches |
| Weight | 2.2 Pounds |
| Width | 4 inches |
| Number of Items | 1 |
| Batteries Included? | No |
| Brand | Coral Seas |
| Manufacturer | Coral Seas |
| Item model number | FBA_YO-2# |
| Product Dimensions | 15.24 x 10.16 x 9.4 cm; 907.18 g |
| ASIN | B002WKO6U6 |

## Product Details

- **Brand:** Coral Seas
- **Item weight:** 907 g
- **Item form:** Granular
- **Product benefits:** algae
- **UPC:** 040053230375

## Images

![Yellow Out Swimming Pool Chlorine Shock Enhancing Treatment - 2 lbs. - Image 1](https://m.media-amazon.com/images/I/51+QhkO01YL.jpg)

## Frequently Bought Together

- Yellow Out Swimming Pool Chlorine Shock Enhancing Treatment - 2 lbs.
- HTH 52037R Pool Care Shock Advanced, Swimming Pool Chemical - Cal Hypo Formula, Prevents Bacteria & Algae, Restores Crystal Clear Water - Shock Treatment, 1lb (12 Pack)
- PoolRX+ pool unit 7.5k-20k gallons

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**Shop now:** [https://www.desertcart.kr/products/628560567-yellow-out-swimming-pool-chlorine-shock-enhancing-treatment-2-lbs](https://www.desertcart.kr/products/628560567-yellow-out-swimming-pool-chlorine-shock-enhancing-treatment-2-lbs)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-08*