---
product_id: 15918263
title: "Lamotte P-6740-H Free Chlorine Test Reagent, DPD #1A; 60 Ml"
brand: "lamotte"
price: "฿1815"
currency: THB
in_stock: true
reviews_count: 4
category: "La Motte"
url: https://www.desertcart.co.th/products/15918263-lamotte-p-6740-h-free-chlorine-test-reagent-dpd-1a
store_origin: TH
region: Thailand
---

# compact 4x1x1 inch size 60 ml precision reagent 1.6 oz lightweight formula Lamotte P-6740-H Free Chlorine Test Reagent, DPD #1A; 60 Ml

**Brand:** lamotte
**Price:** ฿1815
**Availability:** ✅ In Stock

## Summary

> 🧪 Stay ahead of the pool game with precision you can trust!

## Quick Answers

- **What is this?** Lamotte P-6740-H Free Chlorine Test Reagent, DPD #1A; 60 Ml by lamotte
- **How much does it cost?** ฿1815 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/15918263-lamotte-p-6740-h-free-chlorine-test-reagent-dpd-1a)

## Best For

- lamotte enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Portable:** Slim 4x1x1 inch bottle fits effortlessly in your testing kit for on-the-go monitoring.
- • **Lab-Grade Accuracy:** Trusted DPD #1A formula ensures precise free chlorine readings every time.
- • **Seamless Compatibility:** Designed specifically for LaMotte Test Kits, guaranteeing smooth integration and reliable results.
- • **Trusted Industry Standard:** Ranked #47 in Analytical Reagents, a proven choice for professionals managing pool and spa water quality.
- • **Cost-Effective Liquid Reagent:** Switch from powders to a more affordable, easy-to-use liquid solution without sacrificing accuracy.

## Overview

The LaMotte P-6740-H Free Chlorine Test Reagent is a 60 ml liquid DPD #1A reagent designed for accurate free chlorine measurement in pool and spa water. Lightweight and compact, it integrates seamlessly with LaMotte Test Kits, offering a cost-effective and reliable alternative to powder reagents favored by industry professionals.

## Description

For use with LaMotte Test Kits. DPD 1A is LaMotte reagent number P-6740. DPD 1B is LaMotte reagent number P-6741. DPD 3 is LaMotte reagent number P-6743.

Review: Cheaper than the powder & just as accurate - I switched to these from the Hach powder. Still use my Hach color dial. Very satisfied as I take readings often a couple of times a day if I'm adjusting the level and this stuff is way cheaper than the powder packets.
Review: Las lecturas varían, incluso la coloración del liquido es distinta, yo pedí 2 piezas de este producto y vi la diferencia

## Features

- Liquid replacement Reagents
- Model Number: P-6740-H
- Item Package Dimension: 1.15" L x 1.14" W x 4.41" H
- Item Package Weight: 1.1 lb

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002IXK9I |
| Best Sellers Rank | #41,506 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #47 in Analytical Reagents |
| Date First Available | June 2, 2004 |
| Department | unisex-adult |
| Item Weight | 1.6 ounces |
| Item model number | P-6740-H |
| Manufacturer | LA MOTTE CHEMICAL PRODUCTS CO |
| Product Dimensions | 4 x 1 x 1 inches |

## Product Details

- **Brand:** LaMotte
- **Item Weight:** 1.6 ounces
- **Item Volume:** 60 Milliliters
- **Package Information:** Bottle
- **Item Form:** Liquid

## Images

![Lamotte P-6740-H Free Chlorine Test Reagent, DPD #1A; 60 Ml - Image 1](https://m.media-amazon.com/images/I/41XDUMsNm7L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Cheaper than the powder & just as accurate
*by O***T on February 28, 2025*

I switched to these from the Hach powder. Still use my Hach color dial. Very satisfied as I take readings often a couple of times a day if I'm adjusting the level and this stuff is way cheaper than the powder packets.

### ⭐⭐⭐⭐ Review
*by A***O on November 2, 2022*

Las lecturas varían, incluso la coloración del liquido es distinta, yo pedí 2 piezas de este producto y vi la diferencia

### ⭐⭐⭐⭐⭐ Great Price
*by G***C on December 18, 2019*

This was the best deal I have found online...much cheaper than what I paid ordering from a magazine. The drops were good for almost a year and I've experienced no problems with the readings being inaccurate.

## Frequently Bought Together

- LaMotte P-6740-H Free Chlorine Test Reagent, DPD #1A; 60 Ml
- LaMotte Chlorine DPD 1B 60ML P-6741-H
- PH Reagent 60ML 7037-H

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-06-04*