Omnipure K5555 BB Resin Inline Filter




Omnipure K5555 BB Resin Inline Filter

Visit WA Water Filters for Resin Omnipure Filters in Perth, WA

Additional information

Weight 0.8 kg
Dimensions 25.4 × 6.35 × 6.35 cm
Service Life

1 Year

Filter Media

Purolite NRW37SC mixed bed resin is ready to use, 1:1 chemical equivalent that is highly regenerated in the H+
and OH forms. NRW37SC resins are manufactured by a proprietary process that achieves high purity for
ultra-pure water Applications.


1/4″ Female Quick Connect (inlet and outlet)

Operating Temperature

For installation on cold water lines only (40 – 100 F)


Carbon Block

Flow Rate

0.5 GPM

Omnipure K-Series Model


Filter Size

10″ x 2.5″

Micron Rating


Reduction Claim

Hardness (Calcium & Magnesium)



Omnipure is a world class manufacturer of inline water filters and filter cartridges in the USA. They produce over a dozen unique series of filters offering solutions to nearly any point of use water filtration problem.


Omnipure K5555-BB

Flow Rate 0.5 gpm
Maximum Operating Pressure 125 psig
Operating Temperature 2 to 38 ºC35 to 100 ºF
Rated Capacity 230 Grains
Reduction Claim TDS reduction, lowers conductivity
Flow Capacity 2,000 gal

Performance Data Sheet.pdf

Filtration Process

ion exchange water filter softens hard water by exchanging the magnesium and calcium ions found in hard water with other ions such as sodium or hydrogen ions. Unlike scale inhibition, ion exchange physically removes the hard minerals, reducing limescale and making water suitable for applications where it is kept at a constant high temperature e.g. in commercial coffee machines.

Ion exchange is most commonly carried out using an ion exchange resin which normally comes in the form of small beads. A similar type of resin is used in some Water Softeners and in the case of a water softener the resin utilises sodium ions which need to be periodically recharged to prevent the resin becoming ineffective.

Resins that utilise sodium ions aren’t usually used in drinking water filters as the amount of salt (sodium) that can be present in drinking water is legally limited to 200 milligrams/litre. As sodium ion exchange increases salt levels, a hydrogen based ion exchange resin is the preferred option for filters.

Maintenance Requirements

  • Note flow direction of the Omnipure K5555-BB.
  • Flush new Omnipure K5555-BB with 5 gallons of water prior to use and check for leaks. If leaks occur, check tightness of tubing and fittings. If leaks persist, discontinue use and call your supporting dealer.
  • Replace the Omnipure K5555-BB when rated capacity  is reached, or when flow becomes too slow.
  • Install in compliance with state and local laws and regulations.

Additional Information

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 product is as a system component. The benefit is derived from the fitting being molded directly into the filter cap, greatly reducing clearance. Shown here (right) is a reverse osmosis system with the traditional 12 in x 2.5 in filter configuration. Notice that all the filters are uniformly attached. This results in the most efficient use of available space and greater filtering performance in a smaller overall area.

About TDS

What Is TDS?

The term “TDS” is an acronym for Total Dissolved Solids when referring to water. This means the amount of ‘inorganic salts’ which can be found in water. Basically speaking, this is anything that contaminates the purity of the water. Some of these solids can cause a huge amount of health issues. TDS salts include calcium, potassium, chloride, sulfates and many more.

These end up within our water for a variety of reasons. Water is rarely totally pure, and even natural processes can lead to minerals or other solids ending up in the water. Not all are harmful, but some certainly are. Many solids enter our water supply from human processes such as agriculture, water treatments and even wastewater getting into water supplies.

What does a High TDS Mean?

A high TDS is an indicator of the quality of the water. Having high TDS doesn’t always mean that water is harmful. For instance, some mineral water has high levels of solids within and this is not seen as harmful, but that is because the actual solids are. These are usually calcium, magnesium or other substances which may not be bad for the body.

Acceptable TDS Level

A high TDS can also be caused by harmful items such as chlorine, sulfates and more. The measurement is a guideline rather than a specific way to tell if water is high quality or not.

If the high TDS is down to more harmful contaminants being in your water, it can be a serious risk to human health. High TDS can also mean ‘hard’ water, which is far more likely to cause limescale or other build-ups and deposits on pipes or appliances around the home, shortening their lifespan.

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