Housing Part for use with 3M™ Filter Housings are for use with specific 3M™ Filter Housings. Please contact 3M SPSD customer service for specific spare part identification. From single-cartridge housings to large multi-cartridge housings, 3M Purification offers a line of filter housings. A History of InnovationFor more than a century, 3M has applied innovation and technology to improve our customers’ lives and support their business goals. From our headquarters in St. Paul, Minnesota, we serve industrial and commercial customers and consumers in nearly 200 countries. Across thousands of products, the 3M brand represents consistency, superior quality and value. Our success begins with a culture of creative collaboration that inspires a never-ending stream of powerful technologies and product solutions that make life better. We have an ability to apply our technologies – often in combination – to an endless array of real-world customer needs. Of course, all of this is made possible by the people of 3M and our singular commitment to make life easier and better for people around the world. Toward that end, 3M is committed to providing innovative, cost-effective products that help protect people, equipment and our environment. 3M Purification Inc. (formerly CUNO Incorporated) provides filtration and separation solutions for residential, foodservice, science labs, industrial, marine and other applications.