When you choose the Elkay 71300C WaterSentry, you're getting a genuine filter that's tested and certified for serious filtration. This filter is certified to NSF/ANSI 42, 53, and 401 to reduce PFAS chemicals (PFOA/PFOS), lead, microplastics, particles, cysts and chlorine taste/odor. With a 2,250-gallon filter life or 12-month usage, you benefit from fewer replacements and lower maintenance costs. The quick-disconnect 1/4-turn install makes swapping filters fast and clean, and the built-in automatic inlet shut-off prevents spills. Compatible with Elkay's enhanced bottle filling stations, water dispensers and also works with the EWF3001 universal filtration kit. Counterfeit and third-party filters may look similar but are not tested to these standards and may compromise performance. Genuine Elkay filters help ensure safe operation, maintain certification, and protect the long-term integrity of your equipment.