The Omnipure K5520-JJ has a 1 year/1000 gallon capability and a waft rate of 0.5 gpm.The Omnipure K5520-JJ 1 Mic. Carbon Block Filter out Cartridge is a 2.five” x 10″ Filter out that eliminates sediment, dirt, and rust particles to a 1 micron level and eliminates chlorine to fortify style and odor. The Omnipure K5520-JJ includes a fast-connect 1/four” FQC.