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    Become a Customer

    Become a Customer Interested in becoming a customer of Duncan Supply Company?  For more information, click below to start the process.

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    Become a Vendor

    Become a Vendor Have new innovating products that Duncan Supply Company needs to sell?  Start the process below to become a vendor of Duncan Supply Company.

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    August Flyer - Mars

    As a member of Key Wholesaler Group, during the month of August we are proud to be working with Mars, your single source for contactors!  

    780 Series Contactors

    - Designed for demanding applications
    - Drop-in replacement for Furnas
    - Large arch window box lugs
    - Heavy Duty contacts
    - Accepts Furnas auxiliary switches
    - Replacement coils available
    - Exceeds ARI 780/790 requirements
    - cULus aproved
    - Available in 1.5 pole, 30 amp through 3 pole 90 amp

    Stock up now and get 20% off Mars 780 Furnace Contactors (Series 614) from August 1st-31st.   Download the flyer for more information or contact your local DSC branch.  

    Check out these new products from JB Products featured in last month's flyer.  The Aurora Infrared Refrigerant Leak Detector (LD-6000IR) and the Patriot Manifold (22225 without hoses and 22233 with hoses).  Also featured in this month's flyer is the Prowler Leak Detector (LD-5000), the Platinum 7 CFM Vacuum Pump (DV-200N), and the Supernova Digital Micron Gauge (DV-41).  In case you missed it, CLICK HERE to download the flyer or contact your local DSC branch for more information.  

    Please take some time to visit our Duncan Supply website, where you can check out products and our family of reputable vendors.  Don't forget to mark your calendars for all the upcoming counter days we have this month and training in the months ahead.  For a complete list, please visit our Events & Training page.