The Omnipure K-Series K2533-JJ filter is a post R.O.acid washed GAC inline water filter.This filter has 1/4 quick connect fittings that make it really easy to instal 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, odour and chlorine taste and odour.Dimensions: 5.1cm W X 25cm LFlow Rate: .5 GPMMaximum Pressure: 125 PSIGMaximum Temperature: 100 FService Life: 1 Year or 5678.1ls Filtration Media: Granulated Activated Carbon Volume Cubic Inch: 18.2Fitting Size: Quick-Connect 0.6cm fittings Omnipure K2533-JJ has been tested for performance under NSF Standard 42.