DMB Series

DMB SeriesPolypropylene Melt Blown Filter Cartridges

AJR Filtration offers the DMB Series of melt blown cartridges, formerly sold under the Delta Pure name. DMB series filter cartridges are polypropylene melt blown depth filters. AJR Filtration employs 100% FDA approved polypropylene and utilizes a multi-layered construction for progressive contaminant removal efficiency. Our in-house production process creates a depth filter with superior performance and consistency. Standard graded density cartridges are available along with custom-gradient configurations to meet specific application requirements. DMB Series filter cartridges are available in lengths to 50” and various diameters to 4.5” .

DMB Series cartridges are ideal pre-filters and polishing filters where there is a fairly wide contaminant particle size distribution. The depth filtration mechanism also provides excellent control of gelatinous contaminants. A fixed pore structure formed by the non-shedding, bonded medium, prevents release of trapped particles. The self-supporting fiber matrix enables a coreless design that is both economical and strong. The polypropylene filter medium provides broad chemical compatibility.


  • High flow rates
  • Low pressure drop
  • High dirt holding capacity
  • Fixed-pore-structure retains trapped debris
  • FDA listed polypropylene – 21 CFR 177.1520
  • Broad chemical compatibility
  • Controlled process parameters – consistent product
  • Fast lead times
  • RO pre-filtration, DI water, makeup water
  • Bottled water, potable water, municipal water
  • Juices, flavors, food and beverage, cosmetics
  • Weak bases, caustics
  • Amines, glycols, produced water, brine fluids
  • Paints, inks, pigments, solvents (non-halogenated)

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AJR Filtration has added string wound, melt blown, and carbon wrapped filter cartridges, formerly from Delta Pure Filtration to our product offering.  The expanded portfolio enhances AJR's position as a leading US manufacturer of high-quality engineered liquid and dust filtration products. All production and support operations continue under one roof in our West Chicago, IL filtration headquarters. Delta Pure part numbers will not change.  We look forward to serving your liquid filtration needs with more quality filter options, greater economies, and the convenience and simplicity of a single customer account. 

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