Quality, Performance, and Value. These are the cornerstones of Filbur Manufacturing. With over 600 different cartridge models, our extensive product offering makes us one of the leading suppliers of pleated cartridges and Diatomaceous Earth grids. Our filters can be found in many of the leading O.E.M. filters. Our Pool and Spa cartridges use genuine Reemay® spunbound polyester material. All cartridges are shrink wrapped and labeled ready for retail display, or bulk packed for O.E.M. applications. Our D.E. grids have a reinforced spine for added durability and we use a polypropylene material which is rot and mildew resistant. Filbur Manufacturing also offers a variety of other products related to the water purification market; valves, fittings, and reverse osmosis drinking water systems are some of these products. Filbur Manufacturing serves the Pool and Spa O.E.M. market, as well as wholesale distribution.