DMB Series: NSF / ANSI 61 Certified Polypropylene Melt Blown Filter Cartridges

DMB Series Polypropylene Melt Blown Filter Cartridges | Delta Pure string wound filtersDMB polypropylene melt blown depth filters with NSF/ANSI 61 certification meet standards for potable water point-of-entry systems and the requirements of municipal drinking water plants. Delta Pure Filtration employs 100% FDA approved polypropylene, and utilizes a multi-layered construction for progressive contaminant removal efficiency. Our innovative production process creates a depth filter with superior performance and consistency. Standard graded density cartridges are available along with customgradient configurations to meet specific application requirements. DMB Series filter cartridges are available in lengths to 50” (127 cm) and various diameters to 6” (15.2 cm).

DMB Series cartridges are ideal pre-filters and polishing filters where there is a fairly wide contaminant particle size distribution and provide excellent pre-filtration for RO membrane. 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.

NSF/ANSI 61 establishes minimum requirements for the control of potential adverse human health effects from products that contact drinking water. This standard is written into the purchasing specifications of many municipal water districts. The NSF/ANSI 61 certification process included laboratory extraction testing (for assessment of a range VOCs and a variety of metals such as lead) and an on-site audit of our quality system.

View and download the DMB Series: NSF / ANSI 61 Certified Polypropylene Melt Blown Filter Cartridges specs sheet here


  • 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
  • Made by Delta Pure Filtration in USA


  • Municipal drinking water
  • Well water
  • RO pre-filtration, fresh water
  • RO pre-filtration, desalination
  • Point-of-entry (POE) water pre-filtration
  • Bottled water
  • Water for juices, food and beverage
  • Whole-house filters

*Filter users should evaluate chemical compatibility on a case-by-case basis.

 To find out more, CONTACT US today at Delta Pure Water Filtration