945-252
Phosphorus (Reactive and Total) TNTplus Vial Test
$178.95
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New
Simply Reliable. Reliably Simple.
The NEW DR4900 spectrophotometer brings smarter diagnostics
and modern design to a proven classic.
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About Hach
Built on science. Trusted by the experts protecting water.
We've spent 75 years perfecting the methods, instruments, and partnerships that make confident water analysis possible.
- 2,000+ EPA, USP, and ISO-traceable methods, refined over decades.
- Applications experts who know your matrix, your regs, your reality.
- 10,000+ customers served worldwide.
- Life-time support for the life of the asset.
Featured resource
Water Analysis Handbook
The reference. 700+ methods, validated procedures, and method protocols.
Get the handbookMy account
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- Faster reordering
- Manage and convert quotes easily
- Track orders and shipments
- Access invoices and order history
Restock your chemistries
Reorder commonly used reagents, standards and buffers.
A17001
pH 1.679 Certified Reference Material CRM Buffer Standard Solution
$178.95
DRB200-02
Water Hardness TNTplus Vial Test
$178.95
DR1900-01H
DPD Total Chlorine Reagent Accuvac® Ampules
$178.95
18032
EDTA Digital Titrator Cartridge
$178.95
18032
EDTA Digital Titrator Cartridge
$178.95
Lab essentials
Commonly used products for routine water analysis, calibration and sample testing.
945-252
Radiometer Analytical GK2401C Combination pH Electrode
$178.95
A17001
Tubes, Micro Dist Cyanide-1, NaOH Trapping Solution
$178.95
DRB200-02
DRB200 Digital Reactor Block for TNTplus
$178.95
DR1900-01H
DR1900 Portable Spectrophotometer
$178.95
18032
Cold Finger, for 75ml Tube
$178.95
18032
Cold Finger, for 75ml Tube
$178.95
Latest offers
Expires: 09/30/2026
Upgrade Your Instruments with Hach
Trade in or replace your existing equipment and we’ll connect you with your seller to discuss available discounts on new Hach instruments.
Learn more
Expires: 07/15/2026
Score a Free Hach Water Jug When Ordering Online
For a limited time, score a Hach 1/2 Gallon Water Jug with web orders $750+
Learn more
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Expires: 08/30/2026
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Learn moreFeatured products
945-252
Radiometer Analytical GK2401C Combination pH Electrode
$178.95
A17001
Tubes, Micro Dist Cyanide-1, NaOH Trapping Solution
$178.95
DRB200-02
DRB200 Digital Reactor Block for TNTplus
$178.95
DR1900-01H
DR1900 Portable Spectrophotometer
$178.95
18032
Cold Finger, for 75ml Tube
$178.95
18032
Cold Finger, for 75ml Tube
$178.95
Water quality expertise
Together, we make water quality visible.
From source to discharge, Hach helps you turn measurements into decisions with local expertise, proven methods and solutions that work together.
Discover our expertiseBrowse by
Built around your application
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Related insights
Featured resource
Water Analysis Handbook
The reference. 700+ methods, validated procedures, and method protocols.
Learn moreArticle
Score a Free Hach Water Jug When Ordering Online
For a limited time, score a Hach 1/2 Gallon Water Jug with web orders $750+
Learn moreArticle
Lorem ipsum dolor sit amet, consectetur adipiscing elit
Do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Learn moreArticle
Sed do eiusmod tempor incididunt ut labore et dolore
Dolor sit amet consectetur adipiscing elit sed do eiusmod tempor incididunt.
Learn more