Omnipure K2551-JJ, 50/50 Calcite/Corosex Inline Filter

$18.50 - $21.50

Price Per Unit
K2551-JJ$18.50 - $21.50
$18.50 - $21.50
Qty Price Ea.
5 $20.50
10 $19.50
25 + $18.50
  • Made in the USA
  • 10″ X 2″ Inline Filter
  • Granular Activated Carbon
  • Chlorine, Taste & Odor Removal
  • 1/4″ John Guest Fittings



  • 10" x 2" Inline Filter
  • 1/4" John Guest Quick-Connect Fittings
  • 0.5 GPM Flow Rate
  • Used to Correct Low pH Water
  • Maximum One-Year Service Life

Omnipure K2551 is an inline Calcite & Corosex Filter. The K2551 Cartridge contains a 50/50 mix of Calcite and Corosex Media. Calcite is a crushed, white screened marble, which is used to neutralize acidic or low pH in drinking water. Corosex is a specially processed hard bead like magnesia adapted for use in filters to neutralize acidity by increasing the pH value. For the best use the Calcite only for pH levels 6.0 – 6.8. For pH levels of 5.5-6.0 it is best to use calcite & corosex filter.

The success of the K-Series filter is directly attributable to the innovative Quick-Connect fittings that are incorporated into the design. These fittings are unique in two 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 molded 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 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" x 2.5" 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.

The K-Series filter is available in 6", 8", 10", 12" or 14" 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.

Additional information

Cartridge Size

Port Size

Country of Origin

Omnipure K2551 Data Sheet


Parts / Accessories