• Truck and location
  • Worker changing air filters
  • Coil cleaning rig
  • Trust the Leader of Air Filtration Products
    in Arizona

    Dave Downing & Associates has been the leading supplier of clean air filtration products in Arizona for over 30 years. Whether your business is larger or small, we guarantee you will be satisfied by our knowledgeable staff.

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  • Use DL Sales Corp for Installation of Air Filters

    DL Sales Corp can create a custom solution for your air filtration installation needs. We guarantee a professional installation with the highest quality filters.

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  • Need Coil Cleaning?

    DL Sales Corp offers professional coil cleaning services. Our high pressure rig can clean any coil. Eliminate workplace complaints with our chemical free cleaning.

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Air Filtration

Air filter

Home, industrial, or commercial—keep your interior space clean with a variety of different MERV rated air filters to fit your needs.

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Food & Beverage

Fountain Drinks

We provide state-of-the-art 3M Purification systems in order to give you restaurant quality beverages.

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Aluminum Compressed Air Pipe


To move compressed air, Aircom USA has developed Aluminum pipe with quick connect fittings.

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Evaporative Coolers & Media

Filtration system

Staying cool in the hot Sonoran Desert can be a struggle, but we have the solutions your business needs.

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Come to DL Sales Corp for All Your Filtration Supplies in Phoenix, AZ

DL Sales Corp is a family of companies consisting of Dave Downing & Associates, Filtemp Sales, and Filtration Systems in Phoenix, Arizona. With 35 years of experience in the filtration industry, we have the ability to meet all your commercial, industrial, and residential filtration needs.

In a constantly changing environment, DL Sales Corp seeks the best products to ensure you have the latest technology available. We offer a full line of filtration supplies in Phoenix, AZ.

Air and Liquid Filtration Products and Services

Operating as Dave Downing & Associates, DL Sales Corp built a reputation as the leading air filter provider. With a fleet of vehicles, our service staff provides air filtration installation for many of the Valley’s commercial businesses, government offices, big box retailers, food chains, and hospitals.

In addition to air filtration, DL Sales Corp supplies a full line of liquid filtration products, including under sink RO systems, automatic strainers for large municipal reservoirs, and side stream sand filters or multi-bag vessels for cooling towers.

We represent large manufacturers such as Eaton, Pentair, and Velcon. This enables us to deliver filtration for industries such as petrochemical, pharmaceutical compounding, cosmetics, and paint manufacturing.

Our Commitment to Quality

In 2006, the National Air Filtration Association gave the Clean Air Award to the city of Phoenix. This award recognizes facilities that take steps to improve the health of occupants via better filtration. Dave Downing & Associates provided and installed all the filters for Phoenix and nominated the city for the award. This shows our commitment to give the highest level of filtration and service in the industry.


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