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Thirty-One Years ago we started with humble beginnings.  Our first On-Line, Buy Direct, site was the HVAC Store.  Over the years with our commitment to  Customer Service, Engineering Expertise and Quality Products. Our Company is part of hvac industries-online direct sales with sites and on-going designs to provide our visitors with product information and selection by product type ... with others to be announced. -  We take pride in helping people make the proper HVAC Product Selections and properly enhance your Home or Building's Indoor Air Quality (IAQ). We have done projects Worldwide and provide "Solutions by Design™". - Our entry and use of the internet many years ago has been noted by many major Manufacturers and our years of business and partnerships.  Over the past 2 years our sites have evolved and for many respected manufacturers have been designated us as the Factory Direct "USA and International Sales Office", which allows you to purchase at very competitive prices. Our Product Engineers have a combined experience of almost 70 Years. - - When you see this Logo you are assured that you are on an official hvac industries website, providing you with the best pricing for hvac products direct-online. -- Our expertise is from Filter Selection to complete HVAC System Designs.  -- In addition, We have full Manufacturing Capabilities, including but not limited to: - air filters  custom filters ashrae filter housings side access housings hepa filter housings nuclear certified bag-in/bag-out housings tb exhaust systems hepa terminal modules for any manufacturer - Complimentary products and hvac/r products and systems to meet your needs for a complete project or system: ~ Clean Rooms ~ Air Moving Devices including Explosion Proof Products, Heaters to AHUs ~ and much more.  "you design it and we can build it" ™ Our competitive pricing is a result of volume purchasing power, established and built over many years. Our Listed Pricing is based on Small Quantities and we will gladly consider additional discounts for you on larger size orders. We also have on retainer various other professionals such as Licensed Professional Mechanical Engineers (P.E.) and a Ph.D. Microbioligist when required for Indoor Air Quality Analysis. We provide "solutions by design"(tm) to provide you with the Best Products for your requirements, ENERGY SAVINGS SOLUTIONS and Liability Protection.