The 100186 Water Filter is a compatible replacement for the Amway eSpring Water Purifier. This filter effectively removes impurities and contaminants from your tap water, ensuring you have clean and safe drinking water. Its model number is 100186, making it easy to identify and purchase for your eSpring water purifier. Whether you are looking to extend the lifespan of your existing filter or simply want to try a different brand, this product is designed to meet your needs.