Current Promotions

Save 25% on Hach CL17 Reagent Sets

Purchase 12 Hach CL17 free or total chlorine reagent sets and save 25% on your order. Reagents are in stock and ready to ship.

Limited-time offer. No code required, quantity discount will auto apply. 

Save 15% on Hach DR3900 or DR6000 Spectrophotometers

Use code: TNT2025

Buy 2 or more boxes of TNTplus^® Vial Tests and save 15% on DR3900 or DR6000 spectrophotometers. Use code TNT2025 when ordering.

Limited-time offer.

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 Trade in your outdated water quality instruments and save on the latest Hach equipment through Core & Main Supply.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.

10% Off Disposable Gloves

Use code: GLOVES25

Browse our complete line of disposable gloves. We carry top brands like Microflex and SAS Safety. Not combinable with other offers. Limit one use per customer.

Expires 12/31/25

Free Shipping on Orders Over $1,500

Valid on orders over $1500.00 shipped to addresses in the Lower 48 U.S States. Ground shipping only. For orders shipping to Alaska and Hawaii, $4500.00 order minimum.

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.