RO Water Filter 511 & RO Water Filter 511 Replacement FilterRO Water Filter 511: : Our water filter features an advanced 7 layer filtration system that removes up to 99. 9999% of contaminants. It filters out over 1,000 impurities from stubborn rust to harmful fluoride, ensuring every drop you drink is pure : No tools, no hassle. Simply plug in, flush twice, and your water purifier is ready to go. Whether its for your kitchen, living room, or office, it fits perfectly into any space without complicated