51300C Comparable Water Fountain Filter by American Filter Company brand. Disclaimer: Do not use this filter with water that is Hot. Do not use the filter with water that is microbiologically unsafe or of unknown quantity. DO NOT use this filter longer than its intended 12 Month use. Doing so may result in leaks and water damage. Elkay and WaterSentry Plus, and Halsey Taylor are registered trademarks of Elkay Manufacturing Company, Oak Brook, IL. Elkay and WaterSentry Plus, and Halsey Taylor are registered trademarks of their respective holders. Aqualutio are not affiliated with Elkay and WaterSentry Plus, and Halsey Taylor. Install Instructions: 1. Turn off Water Supply 2. Remove existing filter. 3. Install new filter in head and turn till locked. 4. Turn on Water Supply. 5. Check for leaks. 6. Flush system for 3-5 Minutes. For Use With EZH2O(R) Bottle Fillers For Use With Mfr. Model Number LZS8WSLK, LZS8WSSK, LZSTL8WSLK, LZSTL8WSSK,