HC-61 Series

HC-61 SeriesHigh Capacity Wound Filter Cartridges

HC Series-61 polypropylene string wound filter cartridges are certified to comply with materials safety requirements of NSF/ANSI 61 "Drinking water system components - Health effects." These filters are manufactured to be used by water municipalities and in various points-of-entry (POE) potable water systems. In addition, these filters  are made using polypropylene complying with FDA CFR 177,1520. HC high capacity string wound filters, formerly sold under the Delta Pure name, provide excellent filtration for fluids with a wide particle size distribution. The HC series filters are wound with two zones in order to provide longer filter life with challenging fluids. A more open pre-filtration section serves to protect the downstream media and remove large particles, while a tighter final filter section provides removal of smaller particles. The rating to each zone is specified in order to provide a filter uniquely tailored to process requirements. Precision winding geometry provides consistent removal efficiency. Ratings are available from 0.5 um to 200um. Polyester or polypropylene core covers allow added containment removal assurance. Cartridges are available in continuous lengths from 3" to 72" and diameters from 2" to 4.5" End fitting options allow installation into most filter housings.


  • NSF/ANSI 61 Certified to meet municipality purchasing specifications
  • Variety of sizes and configurations to ensure proper sizing, fit, and sealing
  • High sediment holding capacity for longer time between filter changes
  • Continuous lengths up to 72” 
  • Technical support
  • Fast lead times
  • Municipal water filtration
  • RO pre-filtration - fresh water
  • RO pre-filtration - desalination
  • Well water pump - house filtration
  • Commercial POE water filtration
  • Residential POE water filtration
  • Bottled water
  • Juices, flavors, food rinse water
  • Cosmetics
  • Hot water to 176 deg. F 

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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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