---
product_id: 18712651
title: "Hach DPD Free Chlorine Reagent Powder Pillows, 10 mL, Pack of 100, Range from 0.02-2.00 mg/L Cl₂, USEPA Accepted Method 8021, Drinking Water and Wastewater Analysis, for Use with Colorimeter, 2105569"
brand: "hach"
price: "C$3869"
currency: NIO
in_stock: true
reviews_count: 9
category: "Hach"
url: https://www.desertcart.ni/products/18712651-hach-dpd-free-chlorine-reagent-powder-pillows-10-ml-pack
store_origin: NI
region: Nicaragua
---

# 0.02-2.00 mg/L Cl₂ range 100 pre-measured powder pillows USEPA Method 8021 certified Hach DPD Free Chlorine Reagent Powder Pillows, 10 mL, Pack of 100, Range from 0.02-2.00 mg/L Cl₂, USEPA Accepted Method 8021, Drinking Water and Wastewater Analysis, for Use with Colorimeter, 2105569

**Brand:** hach
**Price:** C$3869
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead in water quality with precision-packed chlorine testing power!

## Quick Answers

- **What is this?** Hach DPD Free Chlorine Reagent Powder Pillows, 10 mL, Pack of 100, Range from 0.02-2.00 mg/L Cl₂, USEPA Accepted Method 8021, Drinking Water and Wastewater Analysis, for Use with Colorimeter, 2105569 by hach
- **How much does it cost?** C$3869 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/18712651-hach-dpd-free-chlorine-reagent-powder-pillows-10-ml-pack)

## Best For

- hach enthusiasts

## Why This Product

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

## Key Features

- • **Ready When You Are:** Convenient 100-pack of pre-measured reagent pillows designed for seamless, on-demand testing.
- • **Precision You Can Trust:** Achieve ultra-accurate chlorine readings from 0.02 to 2.00 mg/L for flawless water quality control.
- • **EPA-Certified Reliability:** Backed by USEPA Method 8021, ensuring your testing meets the highest regulatory standards.
- • **Seamless Instrument Compatibility:** Optimized for use with Hach colorimeters and spectrophotometers for effortless, consistent results.
- • **Versatility for Every Water Source:** Perfect for municipal, groundwater, and surface water analysis—stay ahead in any environment.

## Overview

Hach DPD Free Chlorine Reagent Powder Pillows deliver EPA-certified, precise chlorine measurement in a convenient 100-pack format. Designed for 10 mL samples, these pre-measured reagents cover a testing range of 0.02-2.00 mg/L Cl₂ and are fully compatible with Hach colorimeters and spectrophotometers, making them ideal for reliable drinking water and wastewater analysis across diverse water sources.

## Description

Simplify chlorine testing with Hach DPD Free Chlorine Reagent Powder Pillows, compatible with a 10 mL sample volume. This 100-pack of boric acid-free reagents is perfect for targeted or lower-volume water testing needs while meeting USEPA standards for accurate analysis in drinking water and wastewater. Reliable and Easy to Use Delivering a precise testing range of 0.02–2.00 mg/L Cl₂, each powder pillow is pre-measured to ensure consistency for various applications, such as municipal and groundwater monitoring or surface water studies. Paired with Hach instruments, these reagents offer an efficient solution for professionals seeking reliable results. Trusted for Everyday Testing This compact pack is ideal for labs, field-testing teams, or anyone conducting periodic water analysis. Coupled with Hach’s automatic delivery program, managing reagent reorders has never been easier. Confidently monitor water quality with Hach’s dependable chlorine reagent system.

Review: They worked great - Good buy, great company i had missing products and they sent me replacement pouches
Review: chlorine if our friend 🤣 - worked as the should , Hach has been around the water works industry for many years , of course their stuff is reliable

## Features

- USEPA CERTIFIED QUALITY – Trusted for drinking water and wastewater chlorine analysis using Hach Method 8021.
- ACCURATE CHLORINE MEASUREMENTS – Covers a 0.02-2.00 mg/L Cl₂ testing range to support reliable water monitoring.
- CONVENIENT 100-PACK – Pre-measured powder pillows designed for smaller-scale or routine testing applications.
- COMPATIBILITY YOU CAN RELY ON – Intended for seamless use with Hach colorimeters and spectrophotometers for effective results.
- VERSATILE APPLICATIONS – Ideal for testing groundwater, municipal water, and surface water quality.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00N3Z46TK |
| Best Sellers Rank | #28,413 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #32 in Analytical Reagents |
| Date First Available | August 28, 2014 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.06 ounces |
| Item model number | 2105569 |
| Manufacturer | HACH COMPANY |
| National Stock Number | 6550-01-456-8981 |
| Package Dimensions | 4.65 x 4.65 x 0.79 inches |

## Images

![Hach DPD Free Chlorine Reagent Powder Pillows, 10 mL, Pack of 100, Range from 0.02-2.00 mg/L Cl₂, USEPA Accepted Method 8021, Drinking Water and Wastewater Analysis, for Use with Colorimeter, 2105569 - Image 1](https://m.media-amazon.com/images/I/71XTha38PxL.jpg)

## Questions & Answers

**Q: Hi, i plan to buy 10 of these. when is the expiry date?**
A: According to the packets and the individual pillow packs, the expiration date for the Chlorine Free -DPD Reagent is 03/24 for storage between 10 degrees and - 25 degrees Celsius.

**Q: when this item available ill be needing 5 packs of this?**
A: https://www.amazon.com/gp/product/B00N3Z46TK/ref=cx_skuctr_share?smid=A38UJTODLS8CHT

**Q: What are there in hach 2105569 dpd free chlorine reagent powder?**
A: Hach item 2105569 contains DPD which is an indicator that changes color when oxidized, along with phosphoric acid for pH adjustment and a carboxylate salt.

**Q: Will these work with Hanna colorimeter?**
A: Which Hanna model is it.?
If it is using DPD method. It can be used 
This kit is designed for 10 ml as a size of sample. 
You need to check both methods for Hanna meter and Hach’s

## Customer Reviews

### ⭐⭐⭐⭐⭐ They worked great
*by P***P on January 23, 2026*

Good buy, great company i had missing products and they sent me replacement pouches

### ⭐⭐⭐⭐⭐ chlorine if our friend 🤣
*by R***R on December 1, 2025*

worked as the should , Hach has been around the water works industry for many years , of course their stuff is reliable

### ⭐⭐⭐⭐⭐ Good Price
*by L***W on October 23, 2024*

I have to use these every day to check the chlorine for our neighborhood water system. It’s a much better price than buying them through our well contractor.

## Frequently Bought Together

- Hach DPD Free Chlorine Reagent Powder Pillows, 10 mL, Pack of 100, USEPA Accepted, Drinking Water and Wastewater Analysis, Boric Acid Free, 0.02-2.00 mg/L Cl₂, 2105569
- Hach DPD Total Chlorine Reagent Powder Pillows, 10 mL, (Pack of 100), Chlorine Testing, Water Quality Reagents, Reliable Chlorine Measurement, Convenient Chlorine Testing Pack, 2105669
- Hach DR300 Pocket Colorimeter, Chlorine, Free + Total, LR/HR, Waterproof, Portable, for Reliable Water Quality Testing, Easy-to-Use Interface, Large Backlit Display, with Carry Case, LPV445.97.00110

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-12*