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Expanded Technologies Is the Leading Manufacturer of Quality Expanded Metals for the HVAC/IAQ Filtration Industry

About Expanded Technologies, Inc.

Expanded Technologies’ sole focus is the manufacturing of quality expanded metals for the HVAC/IAQ filtration industry. Our expanded metal supports pleats and is the backbone of filters worldwide. Because our high-precision machinery, equipment and tooling are designed, engineered and built in-house, we can precisely customize any pattern, shape and size. This allows us to produce expanded metals to your exact specifications and within tolerances of one half of one thousandth of an inch, which is one eighth the diameter of a human hair.

Experience, Quality, Reliability

With over two centuries of combined experience in management alone, Expanded Technologies has a reputation for integrity, unsurpassed quality and customer service, assuring that you get the exact material you ordered, when you need it. Our impeccable customer service and 100% on-time delivery set us apart; we operate and ship 24/7. Our dedicated long-term employees assure that you will receive a quality product with consistency and repeatability. We have an excellent reputation, not only with our customers, but also with our vendors who extend to us their best prices and delivery times.

Quality Policy

“Expanded Technologies, Inc. is committed to being the industry leader in the manufacturing and distribution of quality expanded metals. We meet and exceed our customers’ specifications and requirements at a competitive price. Through our Quality Management System, we strive to continuously improve our processes and achieve customer satisfaction.”

We Are Here To Help!

Expanded Technologies continuously maintains in its inventory expanded metals in industry-standard roll widths of 18-7/8”, 22-3/4” and 23-7/8” for filter widths of 20”, 24” and 25”, respectively.

We customize specifications for all patterns, shapes and sizes for any industry.

Expanded Technologies and Our Products: The Best Support for You and Your Products

Expanded Technologies’ Products

Rustgard™ expanded metal is made from corrosion-resistant galvanized steel produced specifically for HVAC filters. It is the best alternative to other products subject to corrosion.

Diamondcap™ is an expanded metal designed to economically replace the bottle cap face grids used in flat-panel disposable filters.

Customization – Expanded Technologies can customize and produce expanded metals to meet the exact specifications, patterns, shapes, and sizes of any industry.

Expanded Technologies’ Products Support the Media Which Achieve Higher MERV Ratings

Minimum Efficiency Reporting Value (MERV) is a standard which rates the overall effectiveness of air filters. Higher value MERV rating equates to finer filtration as fewer dust particles and other airborne contaminants can pass through the filter. Higher MERV-rated pleated filters require support; our expanded metal is the most cost-effective product for this application.

Expanded Technologies’ expanded metal mesh supports filtration media in pleated filters. This gives the media rigidity and helps to maintain proper spacing between pleats, resulting in maximum filtration efficiency, low resistance, and high dust-holding capacity. In addition, our expanded metal mesh maximizes pleat stability which prevents the filter from racking or vibrating under normal airflow.

Expanded Technologies The Leading Manufacturer of Quality Expanded MetalsHigher MERV-rated pleated filters, with expanded metal support, maintain cleaner motors, equipment components and coils, resulting in greater heat and cooling transfer.

Expanded Technologies The Leading Manufacturer of Quality Expanded MetalsHigher MERV-rated pleated filters, with expanded metal support, allow greater particulate capture, fewer IAQ complaints and do not promote bacteria growth.

Expanded Technologies The Leading Manufacturer of Quality Expanded MetalsHigher MERV-rated pleated filters, with expanded metal support, used as pre-filters, extend the life of expensive bag filters, HEPA filters, and activated carbon filters.

What Our Customers Have to Say

  • “Expanded Technologies has an elite group of employees who are obviously focused on supporting their customer’s every need.”
  • “They always do a professional job in all aspects that we interact with them without fanfare. They are an excellent vendor.”
  • “Never had a deadline Expanded Technologies couldn’t meet or a problem they didn’t help us through.”
  • “Excellent vendor – quality and delivery is exceptional! Quick turnaround in a time of need. Wonderful customer service who definitely go the extra mile for their customers.”
  • “The sales/customer service team has been nothing short of fantastic!! No complaints!”
  • “I have been very happy with Expanded Tech since switching from (another supplier). Thank you for the great product and service!”

Inside the Best Filters…You’ll Find Expanded Technologies

Expanded Technologies NAFA Certified Air Filter Specialist

When purchasing products or services from a Certified Air Filter Specialist, you are assured that your specific requirements and needs will be addressed by a knowledgeable professional.

Expanded Technologies proudly belongs to the National Air Filtration Association

Expanded Technologies proudly belongs to INDA

Expanded Technologies proudly belongs to ASHRAE

Expanded Technologies is part of the AHR Expo

Shipping and Receiving

Expanded Technologies Operates and Ships 24/7
With the exception of Christmas Eve, Christmas Day, New Year’s Eve, and New Year’s Day (*see below)

*Weekday Shipping Hours
Monday 8 AM – Friday 5 PM (No Appointment Necessary)

*Weekend Shipping
Upon Request or With Appointment

Receiving Hours
Monday – Friday 8 AM – 5 PM

Contact Us




1177 Hayes Industrial Drive
Marietta, Georgia 30062

UnitedHealthcare creates and publishes the Machine-Readable Files on behalf of Expanded Technologies, Inc. To link to the Machine-Readable Files, please click here.