Rensa Filtration, a family of filtration companies manufacturing air filtration products, has acquired Illinois-based Custom Filter LLC. Custom Filter is a leading manufacturer of specialty HEPA and ULPA level filtration products. Additionally, Custom Filter offers extensive testing and validation programs with over 60 years of experience servicing OEM, contract manufacturing, niche and a broad spectrum of high-end pleated filters.

Custom Filter makes a wide variety of filters for the most demanding air, liquid and molecular OEM filtration applications. It offers complete in-house engineering services including filter design, prototyping, manufacturing and filter testing.

“Custom Filter LLC is an exceptional filtration company that shares Rensa’s commitment to engineering excellence, continuous improvement and product innovation,” says Brandon Ost, CEO of Rensa Filtration. “Custom is a very well-run organization, and we are thrilled John and his team will remain with Rensa post acquisition.”

"Joining Rensa and Brandon is an excellent opportunity to expand our manufacturing capabilities and platforms,” says John Copley, president and CEO of Custom Filter LLC. “Together we are excited about the exchange of ideas and anticipated synergies with the Rensa portfolio companies.”

Custom Filter is Rensa’s sixth acquisition since its inception in 2017. Other members of the Rensa family include Maryland-based Viskon-Aire, Illinois-based Permatron, Michigan and Ohio-based RoboVent, Michigan-based D-Mark, Inc, and Texas-based Air Filters, Inc. Rensa will continue to look to add high-growth companies interested in being part of a family of leading-edge filtration suppliers.