Custom Water Filter Cartridges

Custom Configurations


For larger order quantities, Filtrex Technologies is able to offer a high level of product customisation: Filtrex Technologies produces activated carbon blocks for water filtration in a very wide variety of shapes and configurations:

  • Solid blocks.
  • Domes
  • Dome ended cylinders (filter candles)  Discs.
  • Tiny tubes for sports bottles.
  • High flow gravity filter elements.
  • Jumbo sized blocks for whole house or commercial applications

Custom Sizes


The flexibility of our manufacturing process means that Filtrex can produce activated carbon blocks with a very wide variety of inner diameters, outer diameters, and lengths.

Custom formulations


We also produce custom activated carbon formulations (block and GAC) for customers who require their filters to remove specific additional contaminants.

Custom end-caps


End-caps are available in a variety of colours.

Custom Sealing Mechanisms


  • Gaskets
  • O-rings
  • Threads

Custom Finishing Options


  • Sediment wraps.
  • Netting
  • Bespoke labelling
  • Bespoke packaging.

If you have a bespoke requirement, ask us. The answer will almost certainly be “yes, we can do it”!