The Omnipure K-Series K2533 filter is a post R.O. acid washed GAC inline water filter. This filter comes in 1/4 FPT, 1/4" QC, 3/8" QC, and 90 1/4" FQC fittings that make it really easy to install and replace. This filter can be used in ice makers, refrigerators, beverage equipment, drinking fountains, under the counter systems, R.O.Systems and in conjunction with purification systems. This filter also aids in the removal of taste, odor and chlorine taste and odor. Dimensions: 2" W X 10" L Flow Rate: .5 GPM Maximum Pressure: 125 PSIG Maximum Temperature: 100 F Service Life: 1 Year or 1500 Gallons Filtration Media: Granulated Activated Carbon Volume Cubic Inch: 18.5 Fitting Size: 90 Quick-Connect 1/4" fittings, 1/4" FPT, 1/4" QC, and 3/8" QC Omnipure K2533-JJ has been tested for performance under NSF Standard 42.