Started in 1934 as an annual issue of The NEWS, the HVACR Directory & Source Guide has grown tremendously. It''s the most current and complete reference tool in the HVACR industry, containing 3,789 wholesaler listings, 601 HARDI member listings and 109 manufacturer outlets, 67 associations, 79 exporters, 4,095 brand names, and 1,767 product headings with 20,967 product listings. We estimate more than 90 percent of all listings have at least one change each year.

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