Current Promotions
Explore active promotions with Core & Main Supply and get more with your order!
Free TNT/TNTplus Vial Cooling Rack with Hach DR4900 Spectrophotometer Purchase
Use code: COOL
The new DR4900 Laboratory Spectrophotometer streamlines your water analysis, delivering
the trusted precision you expect from Hach® with modern efficiency. Building on the legacy of the trusted DR3900, the DR4900 is redesigned for the demands of today’s lab, helping you get accurate results, faster.
For a limited time, receive a Hach 10 vial cooling rack ($171.00 value) with any DR4900 purchase. Valid while supplies last. Use code COOL at checkout.
Free pH Probe with Hach HQ Meter Purchase
For a limited time, get a free pH probe with the purchase of select HQ portable or benchtop meters, giving you a complete, ready-to-use solution for accurate and reliable testing in the lab and field. One free probe per meter. Reference promo code when ordering by phone, email or online. Offer expires 05/15/26.
Eligible HQ Meters: HQ1110, HQ2100, HQ2200, HQ4100, HQ411D, HQ4200, HQ4300, HQ430D, HQ440D
| Eligible pH Probes | Probe Type / Application | Promo Code |
| PHC10101 | Sealed, gel-filled, for wastewater, drinking water and general applications | PHC101 |
| PHC20101 | Sealed, gel-filled for drinking water and general applications | PHC201 |
| PHC30101 | Refillable for wastewater, drinking water and general applications | PHC301 |
| PHC28101 | Refillable for dirty, high solids content, low ionic strength and ultrapure applications | PHC281 |
FREE Standard Methods Guide ($435 value) with any $1,500 Purchase
Use code: METHODS26
Get a FREE Standard Methods guide with any purchase of $1,500.00 from Core & Main Supply. Use code METHODS26 when placing your order via phone, email or online.
The new Standard Methods for the Examination of Water and Wastewater, 24th edition, provides the most up-to-date, comprehensive resource for measuring the biological, chemical, and physical attributes of waters, and offers guidance for choosing among available methods for specific elements and compounds.
Offer expires 8/31/26. Limit one per account. While supplies last.
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. Trade in your outdated water quality instruments and save on the latest Hach equipment through Core & Main Supply.
Limited-time offer. Contact our team to learn more about the program.
Free Case of Paint With Every Schonstedt u-LOCATE Purchase
Enjoy special pricing on Schonstedt u-LOCATE models and get a FREE case (12 cans) of APWA blue marking paint ($57.00 value) with every Schonstedt u-LOCATE purchase.
Expires August 31, 2025. While supplies last. No code necessary.
Shop Special Deals and Save up to 60%
For a limited time, we are offering deep discounts on select products from our inventory.
All items are new and in excellent condition. Quantities are limited and available on a first-come, first-served basis.
10% Off Your First Order
Use code: SAVE10WEB
Valid one time only for first orders placed via web, email or phone with Core & Main Supply. Not combinable with other offers.
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