We provide high quality dust collection cartridges designed to meet and/ or exceed Donaldson Torit Specifications for efficiencies, construction and operation. Best of all we sell our dust collector cartridges for considerably less than the manufacturer. These Superior cartridges effectively perform in the most demanding industrial environments and provide efficiency up to 99.999%. Buy with confidence, we guarantee our cartridges to at least meet the specifications of the O.E.M. We have been in the Industrial Air Cleaning business since 1979, and have knowledgeable personal available to answer any questions you may have.