---
product_id: 3820077
title: "Poolmaster 23225 1/2-Ounce OTO and Phenol Red Replacement Indicator Solutions For Spa and Swimming Pool Water Testing"
brand: "poolmaster"
price: "€ 22.66"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.es/products/3820077-poolmaster-23225-1-2-ounce-oto-and-phenol-red-replacement
store_origin: ES
region: Spain
---

# 1/2 oz solutions Chlorine & pH tests Sealed for safety Poolmaster 23225 1/2-Ounce OTO and Phenol Red Replacement Indicator Solutions For Spa and Swimming Pool Water Testing

**Brand:** poolmaster
**Price:** € 22.66
**Availability:** ✅ In Stock

## Summary

> 💦 Dive into Crystal Clear Waters!

## Quick Answers

- **What is this?** Poolmaster 23225 1/2-Ounce OTO and Phenol Red Replacement Indicator Solutions For Spa and Swimming Pool Water Testing by poolmaster
- **How much does it cost?** € 22.66 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/3820077-poolmaster-23225-1-2-ounce-oto-and-phenol-red-replacement)

## Best For

- poolmaster enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Sealed solutions comply with transportation regulations for peace of mind.
- • **Dual Testing Power:** Simultaneously monitor chlorine and pH levels effortlessly.
- • **User-Friendly Design:** Simple to use, making pool maintenance a breeze for everyone.
- • **Stay Ahead of the Game:** Ensure your pool's water chemistry is always on point!
- • **Essential for Every Pool Owner:** Don't let water quality slip; keep your spa and pool inviting!

## Overview

The Poolmaster 23225 Replacement Indicator Solutions provide essential 1/2-ounce OTO and Phenol Red solutions for accurate testing of chlorine and pH levels in your spa and swimming pool. Designed for safety and ease of use, these solutions ensure your water chemistry is always balanced, making pool maintenance straightforward and effective.

## Description

Product Description               For maintaining your pool or spa's water chemistry, Poolmaster's replacement solutions are the perfect choice for testing water.                  From the Manufacturer               Since 1958, Poolmaster has been a leading manufacturer of aftermarket pool and spa products with an unwavering commitment to quality, service and reliability. Poolmaster offers products across six different product lines- Backyard and Decor, Inflatables, Floats, Maintenance, Swim and Dive, and Toys and Games. Poolmaster - We Make Water Fun!

## Features

- For maintaining proper water chemistry; Includes 1/2-ounce solutions of OTO and Phenol Red
- OTO tests for the Chlorine Level
- Phenol Red tests the pH level
- (Note: Phenol Red is not the same as Solution #2 Phenol Red - DO NOT interchange)
- Note: The #1 solution is sealed to comply with transportation regulations. No other solutions in this kit require sealed caps.

## Product Details

- **Brand:** Poolmaster
- **Ph Range:** 6.8-8.2
- **Recommended Uses For Product:** Chlorine Test, Spa, Swimming Pool, pH Test
- **Manufacturer:** Poolmaster
- **UPC:** 085334232259

## Images

![Poolmaster 23225 1/2-Ounce OTO and Phenol Red Replacement Indicator Solutions For Spa and Swimming Pool Water Testing - Image 1](https://m.media-amazon.com/images/I/719IMZgeT4S.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: How many drops do you use of each?**
A: 5 drops of yellow on the chlorine side and 5 drops of red to test the ph level.

**Q: Why might my  22240 Test Kit be reading high for pH at 5 drops? ... and not matching my test strips?**
A: Hi, Thanks for your inquiry.
Typically the strips give you a great quick look at the water chemistry test results, while the liquid test kit may give additional insight to results.
Please call us directly at Poolmaster Customer Service so we can discuss further. Weekdays, 8-4 PST at 800-854-1492

**Q: You add 5 drops to how much water?  Want to test water from refrigrator filter.**
A: I am not certain.  I bought the red and yellow items with a test kit which included the instrument into which you put pool water and then then test liquids.   I apologize, but I live in CA whether we’re are being rained upon. I annoy take a chance because I just returned home from 3 weeks in the hospital.  But look at amazons test kits and they may have the info you seek.

**Q: Why do I need to add 1 drop of #4 before adding 5 drops of #2 to test ph with 5 way test kit but this one you only need to add 5 drops to test ph?**
A: Hi, This particular kit does not include # 4 chlorine neutralizer, but you could use a drop of #4 before testing the Ph in the smaller kit if you wish.
If the chlorine level is high, the #4 solution will help neutralize the chlorine, which helps for the most accurate test.
For more information, you are welcome to contact Poolmaster Customer Service directly, Weekdays, 8-4 PST at 800-854-1492!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by J***A on August 22, 2023*

Very happy to be able to buy replacement solutions instead of having to purchase a whole new kit. I test the pool water frequently and mostly for chlorine and ph levels so I use a lot of these solutions in particular. They are accurate and work well.

### ⭐⭐⭐⭐⭐ Great for testing my swimming pool.
*by W***D on September 17, 2023*

Perfect size and cost. Works great.

### ⭐⭐⭐⭐⭐ As advertized
*by J***Y on June 5, 2025*

Correct chemicals

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.es/products/3820077-poolmaster-23225-1-2-ounce-oto-and-phenol-red-replacement](https://www.desertcart.es/products/3820077-poolmaster-23225-1-2-ounce-oto-and-phenol-red-replacement)

---

*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-05*