Current Promotions

Explore our limited time offers below!
Apply the promotion code to your order at checkout. Terms and Conditions apply.*

Hach Cash Promo

Earn Hach Cash for Future Savings!

Maximize your budget by earning Hach Cash toward future purchases when you order now!

Here’s how it works:

  • Place an order between September 15 and December 5, 2025 and use code WATER2025.
  • Your order must be scheduled to ship on or before December 31, 2025
  • Earn Hach Cash based on your order subtotal
  • Redeem your Hach Cash once received through February 27, 2026

Hach Cash Rewards

Order SubtotalHach Cash Earned
$500–$999$50
$1,000–$1,199$100
$2,000–$2,999$200
$3,000–$3,999$300
$4,000–$4,999$400
$5,000–$9,999$500
$10,000–$14,999$1,000
$15,000–$19,999$1,500
$20,000+$2,000

How to Redeem

  • Use promo code WATER2025 at checkout
  • Minimum order value: $500
  • This offer can be combined with other promotions
  • Hach Cash will be emailed to the purchasing contact in December 2025
  • Hach Cash can be used for up to 50% of your order subtotal
    (Example: To redeem $500 Hach Cash, your order subtotal must be at least $1,000)

Terms and conditions apply. Accrual offer ends December 5, 2025.

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Save 15% on the DR3900 or DR6000 When You Bundle With TNTplus Vial Tests

TNTplus chemistries can save you time in the lab, with automatic method detection, precise measurements, and a wide range of parameters available. For a limited time save 15% on a DR3900 or a DR6000 when purchasing 3+ boxes of TNTplus. Use code TNT2025 at checkout to claim this offer before it is too late!

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CL17sc exclusive offer - get three for free

Save on CL17sc Reagents When Buying a Year's Supply

Stock up on CL17sc Reagents to guarantee accurate and consistent results. For a limited time, add 12 CL17sc reagents to your cart and get 3 of them for free. Use code CL17DEAL to get your reagents now!

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Get Free Shipping on all Online Orders Above $500

For a limited time get free shipping on all online orders above $500. Enter code OCTSHIP at the second or third stage of checkout to claim this offer. Take full advantage of this promotion by combining it with Hach Cash to maximize your savings!



Save 20% When You Bundle Select SC4500 Controllers with Compatible Instruments

Save 20% When You Bundle Select SC4500 Controllers with Compatible Instruments

Get 20% off eligible SC4500 controllers when you bundle with select instrumentation, including the CL17sc & CL10 chlorine analyzers, TU5300/TU5400 turbidimeters, and process LDO, pH, ORP & conductivity sensors. Use promo code SCBNDL at checkout to claim your discount. Only qualifying instrumentation applies.

Eligible SC4500 Models:

  • LXV525.99A11501
  • LXV525.99A11551
  • LXV525.99AA1551
  • LXV525.99AA1501
  • LXV525.99E11501
  • LXV525.99E11551
  • LXV525.99EA1501
  • LXV525.99EA1551
  • LXV525.99Z11551
  • LXV525.99Z11501 

Terms and conditions apply; see below for details.

Offer expires: December 31, 2025

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Upgrade Your Instruments with Hach

Upgrade Your Instruments with Hach

Are you looking to upgrade your water quality instruments? Whether you have Hach instruments or equipment from another brand, we are here to help you make the transition smooth and cost-effective.

How it Works:

  • Let Us Know: Simply fill out the form with the details of your existing equipment that needs upgrading.
  • Connect with Your Seller: Once we receive your information, we will connect you with your seller to discuss the discount amounts available for upgrading to new Hach instruments.

Our team is committed to working with your budget and timelines to ensure you get the best possible deal. Upgrade your instruments with Hach today and experience enhanced performance and reliability!

Upgrade Today
Terms and Conditions: