---
product_id: 53490323
title: "Lovibond Phenol Red Tablets - 250 Pack - Professional-Grade Reagents for Digi..."
brand: "lovibond"
price: "$103.19"
currency: USD
in_stock: null
reviews_count: 13
category: "Lovibond"
url: https://www.desertcart.ec/products/53490323-lovibond-phenol-red-tablets-250-pack-professional-grade-reagents-digi
store_origin: EC
region: Ecuador
---

# Rapid 1-5 sec dissolution ±0.01 pH accuracy Eco-friendly, boric acid-free Lovibond Phenol Red Tablets - 250 Pack - Professional-Grade Reagents for Digi...

**Brand:** lovibond
**Price:** $103.19
**Availability:** ❌ Out of Stock

## Summary

> 💧 Stay ahead of the curve with precision pH testing that professionals swear by!

## Quick Answers

- **What is this?** Lovibond Phenol Red Tablets - 250 Pack - Professional-Grade Reagents for Digi... by lovibond
- **How much does it cost?** $103.19 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/53490323-lovibond-phenol-red-tablets-250-pack-professional-grade-reagents-digi)

## Best For

- lovibond enthusiasts

## Why This Product

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

## Key Features

- • **Safe & Sustainable:** Boric acid-free, blister-packed tablets protect both users and the environment without compromising quality.
- • **Speed Meets Accuracy:** Rapid dissolving tablets deliver instant, vibrant color shifts for quick, confident water testing.
- • **Precision You Can Trust:** Professional-grade reagents engineered for flawless photometric pH readings every time.
- • **Versatile Pro & Hobbyist Use:** Ideal for pools, aquariums, spas, and labs—trusted by professionals, perfect for enthusiasts.
- • **Chlorine-Resistant Reliability:** Neutralizes chlorine interference to ensure consistent, true pH results in treated pools and spas.

## Overview

Lovibond Phenol Red Tablets come in a 250-pack of professional-grade, chlorine-resistant reagents designed for digital photometers. They dissolve rapidly within 1-5 seconds, producing a clear multicolored pH indicator shift with ±0.01 accuracy. Boric acid-free and blister-packed for safety and sustainability, these tablets are trusted by water treatment pros and hobbyists alike for reliable pool, spa, and aquarium pH monitoring.

## Description

Buy Lovibond Phenol Red Tablets - 250 Pack - Professional-Grade Reagents for Digital Photometers| Reliable, Easy-to-Use & Accurate Water Testing at desertcart UK. Free delivery on eligible orders.

Review: They work well - They work well
Review: Great for rapid testing of spa or pool pH levels - I bought these as my kit had run out of tablets. Originally I ordered the 'non' rapid tablets which aren't great. These rapid ones as soon as you put them in the test tube and shake for 1-5 seconds have dissolved and changed colour to read PH. Note- they are only refill tablets no kit included you will need that separately.

## Features

- PHOTOMETRIC PRECISION FOR PHOTOMETER WATER TESTING KITS – Lovibond Phenol Red pH Photometer Reagents are developed for use with photometers, ensuring precise results in every test. Essential for any pool, aquarium & hot tub testing kit, each tablet delivers exact reagent dosing for accurate water pH readings.
- RELIABLE TESTING FOR SWIMMING POOL MAINTENANCE – Trusted by water treatment professionals and laboratory technicians, these pH balance tablets offer stable, consistent results. Ideal for swimming pools, spas, aquariums, and home use, they suit both professionals and hobbyists alike.
- CLEAR COLOUR CHANGE FOR EASY READING – Using phenol red, each tablet produces a vibrant, multicoloured shift when dissolved. Designed for compatibility with digital photometers, they enhance the performance of any testing kit and make pH readings simple to interpret.
- CHLORINE-RESISTANT FOR ACCURATE RESULTS – With added thiosulphate to neutralise chlorine, these tablets provide reliable results even in treated water. Whether used as a water pH tester in a residential pool or municipal setting, they help maintain precise pH balance.
- ECO-FRIENDLY, USER-FRIENDLY, BUILT TO LAST – Blister-packed to ensure no direct contact, the tablets are boric acid-free and safe for pools and spas. Their durable foil packaging maintains quality, making them ideal for swimming pool maintenance kits used at home, in education, or professionally.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00WRCNQVE |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 7,299 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 1,041 in Lab & Scientific Products |
| Colour | multicoloured |
| Customer Reviews | 4.4 4.4 out of 5 stars (215) |
| Date First Available | 7 Nov. 2016 |
| Item Package Quantity | 1 |
| Item Weight | 28.3 g |
| Item model number | 511771BT |
| Manufacturer | Astralpool |
| Part number | 511771BT FBM |
| Style | Box |

## Product Details

- **Brand:** Lovibond
- **Manufacturer:** Astralpool
- **Recommended uses for product:** ph measurement in photometers

## Images

![Lovibond Phenol Red Tablets - 250 Pack - Professional-Grade Reagents for Digi... - Image 1](https://m.media-amazon.com/images/I/411Zevhlu1L.jpg)
![Lovibond Phenol Red Tablets - 250 Pack - Professional-Grade Reagents for Digi... - Image 2](https://m.media-amazon.com/images/I/515yaDAxPYL.jpg)
![Lovibond Phenol Red Tablets - 250 Pack - Professional-Grade Reagents for Digi... - Image 3](https://m.media-amazon.com/images/I/516lYSkfY-L.jpg)
![Lovibond Phenol Red Tablets - 250 Pack - Professional-Grade Reagents for Digi... - Image 4](https://m.media-amazon.com/images/I/51GGSlv46bL.jpg)
![Lovibond Phenol Red Tablets - 250 Pack - Professional-Grade Reagents for Digi... - Image 5](https://m.media-amazon.com/images/I/51PebLNx3VL.jpg)

## Questions & Answers

**Q: Do all these Lovibond tablets work with the Poollab 1.0?**
A: Probably not due to the possible differences in wavelengths used for testing , some customers report alkalinity dont.

**Q: are these the correct ones for the poollab 1.0 photometer please**
A: Some customers have used and not reported problems for dpd 1 and ph

**Q: Title says phenol red but picture shows Dpd1, which tablets would I receive if I ordered this?**
A: Thank you for your enquiry. Apologies for the confusion we will change the image. You will receive the Lovibond Phenol Red Photometer 250 pH tablets Code: 511771bt

**Q: Do these and the free chlorine tabs have use by dates? If so how long can they be stored? Thanks**
A: Yes the ones I received had a 10 year use by date on them.

## Customer Reviews

### ⭐⭐⭐⭐⭐ They work well
*by B***R on 1 September 2025*

They work well

### ⭐⭐⭐⭐⭐ Great for rapid testing of spa or pool pH levels
*by A***J on 2 September 2023*

I bought these as my kit had run out of tablets. Originally I ordered the 'non' rapid tablets which aren't great. These rapid ones as soon as you put them in the test tube and shake for 1-5 seconds have dissolved and changed colour to read PH. Note- they are only refill tablets no kit included you will need that separately.

### ⭐ Would not dissolve
*by A***R on 25 October 2025*

Did not work at all as would not dissolve, returned this item

## Frequently Bought Together

- Lovibond Phenol Red Tablets - 250 Pack - Professional-Grade Reagents for Digital Photometers| Reliable, Easy-to-Use & Accurate Water Testing
- Certikin - DPD No 1 Chlorine Tablets | 250 Count for Photometer | Measures Chlorine, Bromine, Ozone | Long Shelf Life, Easy to Use | Suitable for Photometers, Multicoloured
- Certikin - DPD No 3 Total Chlorine Tablets | Precise Dosing & Long Shelf Life | Photometer & Comparator Compatible | Eco-Friendly Chemistry | High Accuracy, Multicoloured, 250 Pack

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-01-23*