Omnipure - K2555 - 10" x 2" DI Mixbed Inline and similar items

The Omnipure K-Series K2555 inline filter features 1/4" NPT, 1/4" QC, and 3/8" QC connection that allow for installation and replacement in a matter of seconds without the use of tools. The Omnipure K2555 DI Inline Water Filter features an ion exchange process producing deionized water which is water that lacks ions, such as those from sodium, calcium, iron, and copper. Capacity : 150 GPG National Pipe Thread (NPT) Size Measured Against a Ruler* Actual Diameter (Inches) National Pipe Thread (NPT) (Fractional) 0.405" 1/8" 0.540" 1/4" 0.675" 3/8" 0.840" 1/2" *NOTE: A very common misconception is that a 1/4" NPT measures as 1/4 inch on a ruler or tape measurer. However, that is not the case. NPT will measure larger in diameter. Above is a sizing reference to help clarify.