DuPlex 4.5" OD Big Blue Water Filter Housing | 10"


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Waterite DuPlex Big Blue 4.5" Diameter Water Filter Housing Kits accept two 10"long Big Blue 4.5" diameter filters. These double filter kits can be used to filter sediment and odors out of the water supply for smaller systems including homes, campgrounds and process treatment.

These twin filter housing kits are highly adaptable to the user's individual needs. Any combination of filter types is possible, depending on the source of the water and the required filtered water objectives. A common whole house duplex filter arrangement for treated city water includes (1) One Micron filter and (1) Carbon Block filter. This arrangement will remove almost all sediment, as well as removing chlorine tastes and odors.


  • These duplex filter housings accept all Big Blue 4.5" diameter 10"  long water filter cartridges, including melt blown polypropylene, pleated polyester, pleated cellulose and string wound sediment cartridges, as well as carbon block filters for taste and odor removal

  • These twin water filter housings accept any brand of 10" long 4.5" OD Big Blue water filters including Waterite, Harmsco, GE Osmonics, Flomatic, Pentair, Clack and Watts.

  • Easy do it yourself installation

  • Minimal pressure drop

Each Kit includes the following:

  • Kit comes fully assembled and ready to install

  • Two Big Blue 4.5" diameter x 10" long filter housings

  • Powder coated steel bracket

  • Twin pressure gauges

  • Set of O-Rings

  • 1" NPT female threaded inlet and outlet plumbing connections

  • Comes with twin pressure relief valves

  • Filters are not included.

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