Madison Industries-backed Filtration Group, a provider of mission-critical filtration solutions, completed the acquisition of Whirl-Pak, a provider of sterilized sampling and testing solutions. Financial terms were not disclosed. "Their fanatical focus on customers and differentiated position with a market leading product line that serves mission-critical applications is a wonderful fit. This is a trusted brand that leading life sciences customers rely on every day, and we look forward to working with the entrepreneurial team at Whirl-Pak," Rob Carpio, Filtration Group President.