The Omnipure K-Series K2553 inline filter features 1/4" FPT, 1/4" QC, and 3/8" QC fittings on both ends. The Omnipure K2553 water filter reduces nitrates A520E.
*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.
- Dimensions: 2" W X 10" L
- Contaminant Reduction: Nitrate Reduction A520E
- Fitting Size: 1/4" FPT, 1/4" QC, and 3/8" QC
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" |