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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NEW! All welded DuoFlow filter bag

NEW at AJR Filtration: The DF all welded DuoFlow filter bag is now available with our POEX extended life media for improved performance providing up to 3x bag life. Available in Sizes 1 and 2, AJR’s DuoFlow is an economical replacement filter in vessels containing a DF style "R" closed type basket. These filters are designed with inner and outer filter media cylinders for long life, superior flow, and reduced hold-up volume.

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