Omnipure Inline K-Series Filter Cartridges


The John Guest Quick-Connect™ fittings incorporated into this filter design function in two unique ways. First, they allow for the installation of the inline filter in a matter of seconds. Inlet and outlet tubes are simply snapped into place and secured using a patented collet system. Second, the fittings are moulded directly into the filter body and cap as a single unit. This reduces the chance for weeping or seepage. Cap and body are spin-welded together producing a smooth, consistent seal without the use of glues or binders that can cause contamination. The result of these design and production techniques is a reliable filter that is fast and easy to install.


One of the primary uses of this Omnipure filter is as a system component. The benefit is derived from the fitting being moulded directly into the filter cap, greatly reducing necessary space needed around the system. All filters are uniformly attached. This results in the most efficient use of available space and greater filtering performance in a smaller overall area.

Dependent on your specific filtration needs – Omnipure provide a range of cartridges with specific filtration qualities.

Quality component Primary function
Calcite corosex For adjusting pH/neutralising
Carbon block Taste, odour, metals and cyst removal
GAC Taste, odour
Sediment Dirt, sand and all particulate matter
Ion exchange Reducing total dissolved solids
Phosphate/carbon Inhibits scale/lime build up
100% phosphate Prevents scale/lime build up


The K-Series filter is available in 6”, 8”, 10” or 12” lengths manufactured in 2” or 2.5” diameters. The true benefit is that systems can be designed to incorporate the various lengths and diameters – either all the same size or intermixed – to meet specific filtration needs.

K Series Calcite/Corosex

Item Code Micron rating Model Sizes
IT000150 5 K2550 10″
IT000155 5 K5550 10″

K Series Carbon Block

Item Code Micron rating Model Sizes
IT000142 1 K2520 10″
IT000143 1 K2520 10″
IT000133 1 K5515 10″
IT000135 1 K5520 10″
IT000137 1 K5520 10″
IT000138 1 K5520 10″

K Series GAC

Item Code Micron rating Model Sizes
IT000115 5 K2340 6″
IT000140 5 K2540 10″
IT000144 5 K2540 10″
IT000151 5 K2540 10″
IT000160 5 K5540 10″

K Series Carbon/KDF

Item Code Micron rating Model Sizes
IT000157 5 K5550 10″

K Series Sediment

Item Code Micron rating Model Sizes
IT000129 5 K2505 10″
IT000130 5 K2505 10″

K Series Ion Exchange

Item Code Micron rating Model Sizes
IT000158 5 K5555 2.5″ x 10″
IT000159 5 K5555 2.5″ x 10″

K Series Phosphate & Carbon

Item Code Micron rating Model Sizes
IT000161 5 K2386 6″
IT000165 10 K5485 8″
IT000164 10 K5486 8″
IT000122 5 K2586 10″
IT000162 5 K5586 10″
IT000163 5 K5586 10″

K Series Phosphate

Item Code Micron rating Model Sizes
IT000165 10 K5485 8″
IT000167 10 K5585 10″

The John Guest Quick-Connect™ fittings are available in:

  • Straight John Guest female 1/4”
  • 90° single female elbow
  • Straight female machine thread 1/8”, 1/4” or 3/8”

Buy Now

We take pride in providing not only the best brands and quality of products but also the best solutions for your water filtration requirements. Our professional experience and knowledge of the latest available products can be of great help when choosing a water filter system.

For all sale enquiries please talk to our team today, call 02 9458 1111