The K5555-JJ has a drift rate of 0.5 gpm and is excellent to be used with ice makers, refrigerators, RO systems, and beverage systems.The Omnipure K5555-JJ DI Mixed Bed Inline Water Filter out is a 2.five” x 10″ deionization cartridge. The K5555-JJ has a snappy-connect 1/four” FQC fitting for simple installation. The Omnipure K5555-JJ exchanges ions to provide you with nice tasting water.