---
product_id: 285143019
title: "Technologies R-0004 pH Indicator Reagent, 2 Ounce"
brand: "taylor"
price: "385 kr"
currency: NOK
in_stock: true
reviews_count: 5
category: "Taylor"
url: https://www.desertcart.no/products/285143019-technologies-r-0004-ph-indicator-reagent-2-ounce
store_origin: NO
region: Norway
---

# compatible with Taylor Test Kits pH range 0-14 precision 2 oz concentrated reagent Technologies R-0004 pH Indicator Reagent, 2 Ounce

**Brand:** taylor
**Price:** 385 kr
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead of the curve with precision pool care!

## Quick Answers

- **What is this?** Technologies R-0004 pH Indicator Reagent, 2 Ounce by taylor
- **How much does it cost?** 385 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/285143019-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

- • **Accurate pH range 0-14:** Ensures precise water chemistry balance every time
- • **Long-lasting 2 oz bottle:** More tests per purchase, perfect for multiple pools or frequent use
- • **Trusted by pros & enthusiasts:** 4.6-star rating from nearly 1,000 users confirms reliability
- • **Cost-effective refill solution:** Save significantly compared to small bottles or store prices
- • **Seamless Taylor Kit integration:** Optimized for Taylor Test Kits for hassle-free testing

## Overview

Taylor Technologies R-0004 is a 2-ounce pH indicator reagent designed for use with Taylor Test Kits, offering precise pH measurement across the full 0-14 range. Ideal for pool and spa maintenance, this concentrated formula provides long-lasting, cost-effective testing with a proven reputation for accuracy and reliability.

## Description

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

Review: Better price than at the Hot Tub stores - It’s the larger bottle (not the small one that fits in the blue kit) and it’s perfect. It lasts a long time with weekly testing. Way better price than at the hot tub stores and it delivered super quick. Will buy again.
Review: Great value to buy the 2oz size - No one talks about how expensive pool maintenance is, but buying testing chemicals can be one of those "uncharted" expenses. However, Taylor kits are by far the best and most accurate way to measure pool chemistry, and little bottles (3/4 ounce) can be refilled with these 2 ounce bottles for a considerable savings—assuming you go through it fast enough or can store it without the chemicals degrading. Especially valuable if you maintain multiple pools or have multiple test kits that need to be refreshed.

## Features

- manufacturer: Taylor Technolo
- Item Trademark: TAYLOR TECHNOLO
- Item Weight: pounds, pounds, 0.13, 0.13
- Item Category: Lab Chemical

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0030EVB74 |
| Brand | Taylor |
| Brand Name | Taylor |
| Customer Reviews | 4.6 out of 5 stars 985 Reviews |
| Included Components | swimming-pool-chemicals-and-supplies |
| Item Highlight | Phenol Red Dropper Refill (2 oz) Tests pH in Pools & Spas, Replace Annually |
| Item Weight | 0.01 Ounces |
| Manufacturer | TAYLOR |
| Material Type | pH-sensitive dye |
| Model Number | R-0004-C |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | R-0004-C |
| Recommended Uses For Product | Swimming Pool, Spa |
| Recommended uses for product | Swimming Pool, Spa |
| Sterility Rating | 0-14 |
| UPC | 840036000199 |
| pH range | 0-14 |

## Product Details

- **Brand:** Taylor
- **Manufacturer:** TAYLOR
- **Recommended uses for product:** Swimming Pool, Spa
- **UPC:** 840036000199
- **pH range:** 0-14

## Images

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

## 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

### ⭐⭐⭐⭐⭐ Better price than at the Hot Tub stores
*by L***2 on 27 October 2022*

It’s the larger bottle (not the small one that fits in the blue kit) and it’s perfect. It lasts a long time with weekly testing. Way better price than at the hot tub stores and it delivered super quick. Will buy again.

### ⭐⭐⭐⭐⭐ Great value to buy the 2oz size
*by A***B on 1 February 2026*

No one talks about how expensive pool maintenance is, but buying testing chemicals can be one of those "uncharted" expenses. However, Taylor kits are by far the best and most accurate way to measure pool chemistry, and little bottles (3/4 ounce) can be refilled with these 2 ounce bottles for a considerable savings—assuming you go through it fast enough or can store it without the chemicals degrading. Especially valuable if you maintain multiple pools or have multiple test kits that need to be refreshed.

### ⭐ Ordered a 2 oz bottle but received a 0.75 oz bottle - is it a scam or a mistake?
*by D***S on 13 March 2021*

I am the 4th reviewer to have recently received a 0.75 oz bottle even though the product description clearly states that the product offered is a 2 oz bottle including a photo of a clearly identified 2 oz bottle. I have returned the product to Amazon for a refund. I would like to write it off as a mistake, but the fact that at least 3 others have received the small bottles makes me suspect that it is more than a mistake.

## 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 Norway*
*Store origin: NO*
*Last updated: 2026-09-22*