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-- Duncan Supply Products & Vendors Branch Locations Branch Locations 1 Branch Locations 2 Branch Locations 3 Branch Locations 4 Branch 1 Branch 2 Branch 3 Branch 4 News & Promotions Events & Training Contact Us Pay My Bill Wholesale Distributors Refrigeration, HVAC & Food Service Equipment About Us eCommerce Pay My Bill Search for: Products & Vendors Featured Vendors Line Card Our Company Branch Locations Family History News & Promotions Events & Training Contact Us Pay My Bill eCommerce Pentair Everpure Choose only genuine Pentair Everpure Replacement Filter Cartridges from Duncan Supply, your Authorized Distributor. Learn More -- Vendor Spotlight Pentair Everpure Choose only genuine Pentair Everpure Replacement Filter Cartridges from Duncan Supply, your Authorized Distributor. Learn More GOT COILS? Ask about our Ameristar Cool Packs too! Learn More! -- Vendor Spotlight GOT COILS? Ask about our Ameristar Cool Packs too! Learn More! TEXT Your Local Branch Real Time Inventory, Warranty Verification, No Waiting on the Phone & Much More!   Find Your Local Branch Now -- Vendor Spotlight TEXT Your Local Branch Real Time Inventory, Warranty Verification, No Waiting on the Phone & Much More! Find Your Local Branch Now Pay Your Duncan Supply Bill Online     Pay My Bill -- Vendor Spotlight Pay Your Duncan Supply Bill Online Pay My Bill Welcome to Duncan supply company inc. Since inception in 1936, Duncan Supply Company has taken pride in delivering the highest quality and best value to our customers. This philosophy has helped us grow into an industry leader, distributing a wide range of refrigeration, air conditioning, heating equipment, and accessories to customers, throughout central Indiana and Illinois. read more Branch Locations View a map of our branches Become a Vendor Have new innovating products that Duncan Supply Company needs to sell? Start the process below to become a partnering vendor of Duncan Supply Company. Start the process Become a Customer Interested in becoming a customer of Duncan Supply Company? For more information, click below to start the process. Start the process Featured Vendors Just as Duncan Supply has progressed from the use of crank telephones and note pads, to cell phones and e-mail, the increasing business usages of the Internet has challenged us all to harness the technology to provide state-of-the-art services to our customers. -- QUICK LINKS Products & Vendors News & Promotions eCommerce Events & Training About Us Contact Us Branch Locations contact info 910 N. Illinois Street Indianapolis, IN 46204-1087 P: 800-382-5528 connect Copyright © 2017 Duncan Supply Company, Inc. SITE BY NEXTFLY...