is this product interchangeable with Hach 2105569?

I don't believe so. The Hach 2105569 takes a 10ml sample and is best used in a Hach machine. The Barnant 1407799 takes a 5ml sample and is used in the Hach visual measurement kit. I use a Hach visual kit with the Barnant 1407799.

Can these reagent pillows be used in another colorinator that is not the Hach brand? I have a Hanna free-chlorine chlorinator coming.

It could be considered but we cannot confirm they will give the correct result. If you want to try it, it would be best to do so with a known solution of chlorine or side by side comparing results to the proper manufacturers reagent.

what is the difference between "free" and "total" chlorine?

Free chlorine is the amount of non-reacted available chlorine in a system. Total Chlorine is the amount of compost chlorine in a system including free chlorine, and reacted chlorine like chloramines.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

DPD Free Chlorine Reagent Powder Pillows, 5 mL, Pack of 100, Range from 3.5 mg/L Cl₂, USEPA Accepted Method 8021, Drinking Water & Wastewater Analysis, for Use with Colorimeter, 1407799

Product ID: 23993764

Details

Brand
HACH
Item Form
Powder
Item Weight
0.02 Kilograms
Number of Items
1
Product Benefits
Maintains

📏Accurate 3.5 mg/L Cl₂ detection range

📦Convenient 100 pre-measured powder pillows

🧪USEPA Certified Method 8021

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

MOP$433

Duties & taxes included

In stock

Sold byAmazon MacauDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Macau.

Secure transaction

Description

💧 Stay ahead in water quality with precision you can trust!

EPA CERTIFIED PRECISION - Trust your water analysis with USEPA accepted Method 8021 for unmatched reliability.
VERSATILE WATER TESTING - Perfect for groundwater, municipal, and surface water analysis—stay ahead in water safety.
READY TO USE CONVENIENCE - Pre-measured powder pillows in a 100-pack streamline routine testing—no guesswork needed.
PINPOINT CHLORINE ACCURACY - Detect chlorine levels as low as 3.5 mg/L for confident water quality monitoring.
SEAMLESS DEVICE COMPATIBILITY - Optimized for Hach colorimeters and spectrophotometers to deliver consistent, professional results.

The DPD Free Chlorine Reagent Powder Pillows (Pack of 100) offer EPA-certified, highly accurate chlorine testing from 3.5 mg/L Cl₂, designed for seamless use with Hach colorimeters. Ideal for professional-grade drinking and wastewater analysis, these pre-measured powder pillows ensure convenient, reliable water quality monitoring across multiple water sources.

Specifications

ASIN	B00N3YJBHS
Best Sellers Rank	#48,363 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #59 in Analytical Reagents
Brand	HACH
Brand Name	HACH
Customer Reviews	4.6 out of 5 stars 89 Reviews
Item Form	Powder
Item Weight	0.02 Kilograms
Manufacturer	HACH COMPANY
Manufacturer Part Number	1407799
Model Number	1407799
Number of Items	1
Package Size Name	100-Pack
Product Benefits	Maintains Clean Sanitized Water
Unit Count	1.0 Count

Reviews

R**S

Convenient

Used with Chlorine Tester for water - Convenient - Easy to use.

12.07.2021

A**R

As Advertised

I have used this product for 5+ years and am very satisfied with it.

1.01.2020

C**N

Received quickly

Use to test chlorine. Works well. Price has increased alot though.

24.01.2024

H**D

Better than we thought!

This product was actually a Hach product which is what we were looking for. It worked our perfectly for us!

6.05.2017

A**R

As expected

On time and arrived as expected.

26.06.2019

N**L

Barnant DPD Free Chlorine, Powder-5ml

Repeat purchase-suits my needs as expected! Works with Hach chlorinator measurement tools.

29.08.2017

R**A

Disappointed

I'm disappointed in the pouches because they are sealed very low on the pouch, which makes it difficult to open. It's like these are seconds. I've worked with this product for 6 months prior to buying them from Amazon. I've never had this problem before. There is a, tear here, cut on the package but it is sealed below the cut.

26.04.2020

D**N

does its job

works like it is suppose to

3.08.2018

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

MOP$433

Duties & taxes included

In stock

Sold byAmazon MacauDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Macau.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

View all Trustpilot reviews