The K2548 inline calcite filter is one of Omnipure's K series inline filters that easily install directly to your water line and reduce weeping or seepage potential. This filter contains calcite, a crushed and screened white marble media, to neutralize acidic or low pH waters to a safer, less corrosive effluent. Available with various fittings to meet your water line's specifications.

NOTE: 1/4" and 3/8" refers to the outside diameter of tubing.

Specifications:
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.