Compatibility: Compatible with for Elkay 51300C, and Compatible with EWF3000Long-Life Filter: With a capacity of 3000 gallons per filter, we recommend replacing it every 3000 gallons or 1 year, whichever comes firstEasy Installation and Maintenance: Provides precise, leak-proof fit, and it's very easy to installAnti clogging filter: Polypropylene pre filtration can prevent large sediment or particles from entering and clogging the filter mediumPlease note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you!Color: WhiteMaterial: plasticPackage Contents:3 x Water FiltersOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.