Products
Precision-Made, USA-Built Filters You Can Rely On
At Durable Filter Manufacturing, LLC, we've been producing high-quality string wound filter cartridges since 1959—serving industries that demand consistent performance and long-lasting filtration. Proudly family-owned and operated in Bensenville, Illinois, every one of our filters is made in the USA using locally sourced materials. We specialize in depth filtration through string wound technology, which serves as the essential first step in removing particles like dirt, rust, microplastics, and heavy metals from liquids across various industrial and commercial applications.
With hundreds of filter variations in stock and the ability to custom manufacture to your specifications, we are your trusted partner in quality filtration.
Filter Cartridges We Offer
We currently manufacture two main filter types: string wound filters, which provide true depth filtration and outperform many other depth filters by offering a higher dirt-holding capacity, longer service life, and consistent performance under pressure—and our activated carbon filter cartridges, which are designed for targeted reduction of taste, odor, and chemicals in water.
Standard String-Wound Filter Cartridges
· Diameters: 2½" and 4½" (Big Blue™) (Need a special diameter? Contact us for custom options.)
· Lengths: 10", 20", 30", and 40" (Need a custom length? We can help.)
· Micron Ratings: 1, 5, 10, 20, 25, 30, 50, 100, 200 (Need a non-standard micron rating? Just ask.)
· Core Options: Polypropylene (standard), Tin, 304 Stainless Steel
· Media Options: FDA-grade Polypropylene (standard), Bleached Cotton, Natural Cotton, Rayon, Polyester, Nylon, Silver Ion
Looking for a Specific Filter?
Give Us a Call or Request a Quote
Activated Carbon Filter Cartridges
· 5 Micron rating
· Contains 12 oz. of granular activated carbon
· 3 GPM flow rate
These filters are designed for applications that require taste, odor, and chemical reduction, enhancing water quality at a granular level