【Efficient filtration】The premium activated carbon and PP cotton adopted as the filtration materials ensure no large particles or heavy metals make it into your drinking water. Tested against NSF/ANSI 42 standards by independent laboratory, it reduces 99% chlorine, taste and odor. Although the system is not effective against TDS, it effectively reduces silt, rust and VOC. 【Up to 2 years life time】With up to 8000 gallons of filtered water or 2 years lifespan (depending on your local water quality), the Waterdrop water filter for sink offers you a considerably longer service life. It runs at a flow rate of 1.3 GPM at 60 psi. You only need to replace the under sink water filter once every year to maintain an optimized filtration effect. 【Cost-effective choice】The length of the under sink water filter is 16.8 inches, so you need an under sink space of similar measurement. For the size, you enjoy a 1.2x larger filter area and a stronger filtration performance that stays optimized for as long as possible. You can rest assured of a better filtration performance compared to filters with a similar 2-year lifespan and to enjoy the optimized effect even at the end of service life. 【Compatible model】 Compatible with Waterdrop Under-Sink Ultra Filtration System (WD-TSU-B/WD-TSU-W) and Waterdrop Integrated DC Filtration System (WD-TSC-W). Kindly reach out to customer service if you experience issues during use. There is a premium after-sale service available to help out at all times. 【Professional brand】 Top quality has always been Waterdrop’s approach to water purification. We source our materials in accordance with the highest industry standards. Our professional team members vet every piece of material to ensure that it meets those standards by researching ingredients, auditing sourcing practices, and testing products—all to make your shopping secure. p i Why do you choose Waterdrop? /b /i /p p /p p Established in 2015, Waterdrop has grown to become the most popular and diversified brand in the replacement filter industry. We have a unique global footprint and sell our products in more than 20 countries worldwide. We are dedicated to delivering a sustainable, industry-leading water purification experience by enhancing water quality and contributing to a healthier future. /p p /p p Waterdrop Under-Sink Ultra Filtration System achieves great filtration performance. The innovative filter design allows the system to remove contaminants while retaining beneficial minerals, providing healthier and safer water for you and your loved ones. /p p /p p Together with The Water Project, we have invested in better sanitation in schools in Africa to support better futures for children. Every time you buy one filter, one child will get a one-day supply of clean water. Thousands of students and families have benefited from this project, enjoying clean and safe water. /p