---
product_id: 7752850
title: "Technologies R-0004 pH Indicator Reagent, 2 Ounce"
brand: "taylor"
price: "B/.35"
currency: PAB
in_stock: true
reviews_count: 12
category: "Taylor"
url: https://www.desertcart.com.pa/products/7752850-technologies-r-0004-ph-indicator-reagent-2-ounce
store_origin: PA
region: Panama
---

# 2 oz dropper for easy dosing Precision pH indicator Compatible with 2000 Series Comparator Technologies R-0004 pH Indicator Reagent, 2 Ounce

**Brand:** taylor
**Price:** B/.35
**Availability:** ✅ In Stock

## Summary

> 🧪 Elevate your water testing game with precision and ease!

## Quick Answers

- **What is this?** Technologies R-0004 pH Indicator Reagent, 2 Ounce by taylor
- **How much does it cost?** B/.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/7752850-technologies-r-0004-ph-indicator-reagent-2-ounce)

## Best For

- taylor enthusiasts

## Why This Product

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

## Key Features

- • **Seamless Compatibility:** Designed specifically for Taylor 2000 Series Comparator for flawless integration.
- • **Cost-Effective Precision:** Fewer drops needed than competitors, maximizing value without compromising accuracy.
- • **Trusted Industry Standard:** Top-rated reagent with 4.6 stars and a loyal professional user base.
- • **Accurate pH Testing Every Time:** Delivers reliable results with just 2 drops, saving time and reagent.
- • **Compact & Convenient 2 oz Dropper:** Perfectly sized for easy handling and long-lasting use.

## Overview

Taylor R-0004-C is a 2-ounce pH indicator reagent designed for use with Taylor Technologies test kits and the 2000 Series Comparator. Known for its accuracy and efficiency, it requires only 2 drops per test, offering cost-effective and reliable pH measurement favored by professionals.

## Description

Taylor R-0004 pH Indicator Reagent. For use with Taylor Test Kits. Size: 2 ounce

Review: The best - Taylor. The best water testing available. Easy to use.
Review: Works great. Good value. - The bottle arrived in good condition and yields the same results as my other brand PH reagent. Phenol comes in different concentrations. With this Taylor R-0004, I use 2 drops for my color match. Some brands need 5 drops to get useable readings. With my test kit, 2 drops gives me the same reults as my original reagent and my test strips. Save money with this 2 oz. size.

## Features

- For use as directed with Taylor Technologies test kits
- R-0004 is used for the pH test
- Use with 2000 Series Comparator
- 2 ounce dropper bottle

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0030EVB74 |
| Best Sellers Rank | #8,039 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Analytical Reagents |
| Customer Reviews | 4.6 4.6 out of 5 stars (967) |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2 ounces |
| Item model number | R-0004-C |
| Manufacturer | TAYLOR |
| Product Dimensions | 1 x 1 x 3.25 inches |

## Product Details

- **Brand:** TAYLOR
- **Manufacturer:** TAYLOR
- **Ph Range:** 0-14
- **Recommended Uses For Product:** Swimming Pool, Spa
- **UPC:** 840036000199

## Images

![Technologies R-0004 pH Indicator Reagent, 2 Ounce - Image 1](https://m.media-amazon.com/images/I/715OjsrlqML.jpg)

## Available Options

This product comes in different **Item Package Quantity** options.

## Questions & Answers

**Q: What exactly am i getting here?  the model # shows r-0002a with description of 2.75oz while the picture on amazon shows r-0004 with 2oz?**
A: Thank you for your question. This item's descriptive data is currently all messed up. I reported it to Amazon several days ago and it remains a disaster. This item is supposed to be a Taylor R-0004 reagent in the 2 oz size (a.k.a. R-0004-C). There is no "2.75 oz" size available and this is NOT a DPD reagent. it is a pH Reagent.

**Q: Can this be used to test drinking water?**
A: This reagent is for use with a Taylor test kit, such as the K-2006 FAS-DPD chlorine test kit. If you have one of those, or at least the pH comparator tube (the one with the colored windows to compare the color of the test water to), then yes, you can then use this reagent to find the pH of drinking water (if it's between 7.0-8.0). If the test water is out of this range, then no.When used with the Taylor K-2006, you can measure the pH in 0.2 increments (from pH 7.0-8.0).

**Q: how many drops per 10 ml ?**
A: Hi 5drops per 44ml

**Q: Can you tell me the expiration date**
A: 04/17

## Customer Reviews

### ⭐⭐⭐⭐⭐ The best
*by Y***R on January 22, 2026*

Taylor. The best water testing available. Easy to use.

### ⭐⭐⭐⭐⭐ Works great. Good value.
*by P***W on August 8, 2024*

The bottle arrived in good condition and yields the same results as my other brand PH reagent. Phenol comes in different concentrations. With this Taylor R-0004, I use 2 drops for my color match. Some brands need 5 drops to get useable readings. With my test kit, 2 drops gives me the same reults as my original reagent and my test strips. Save money with this 2 oz. size.

### ⭐⭐⭐⭐⭐ Need for spa and pool
*by M***7 on December 17, 2025*

This one is a nice size for a replacement. Fit the bill and thank you Amazon for the fast shipping plus free shipping too.

## Frequently Bought Together

- Taylor Technologies R-0004 pH Indicator Reagent, 2 Ounce
- Taylor R-0008-C, Total Alkalinity Indicator, 2 Ounce, For Testing Total Alkalinity Levels in Pool and Spas, Dropper Refill for Water Test Kits, Replace Annually | Made in the USA
- Taylor Technologies R-0871-C Fas-Dpd Titrating 2 Oz

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-02-12*