【𝐍𝐒𝐅/𝐀𝐍𝐒𝐈 𝟑𝟕𝟐&𝟓𝟑&𝟒𝟐 𝐒𝐭𝐚𝐧𝐝𝐚𝐫𝐝 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝】 The Viomi 800G reverse osmosis system strictly adheres to high water purification standards and has obtained reliable tests and certifications to ensure the health and safety of your drinking water.【𝐓𝐚𝐧𝐤𝐥𝐞𝐬𝐬 & 𝐂𝐨𝐦𝐩𝐚𝐜𝐭 𝐃𝐞𝐬𝐢𝐠𝐧】 Viomi reverse osmosis water filter can not only save 65% of the space under sink but also avoid secondary pollution from the tank. You can quickly install your water purifier within 20 minutes with the help of our 4-step easy installation guide. (Note:Viomi under sink water filter requires an electrical outlet and drilling at least two holes during installation, 1"-1.5" hole for faucet and 1/4" hole for waste water.) Product size is 𝟏𝟔.𝟑"𝐋 𝐱 𝟓.𝟎𝟒"𝐖 𝐱 𝟏𝟐.𝟕𝟓"𝐇.【𝐑𝐞𝐝𝐮𝐜𝐞𝐬 𝐓𝐃𝐒 & 𝐏𝐅𝐎𝐀/𝐏𝐅𝐎𝐒 & 𝐌𝐢𝐜𝐫𝐨𝐩𝐥𝐚𝐬𝐭𝐢𝐜𝐬】 Our 𝟗-𝐒𝐭𝐚𝐠𝐞 reverse osmosis Filtration effectively reduces total dissolved solids (TDS), PFOA, PFOS, chlorine, chloramine, lead, heavy metals and other harmful substances in water. With a filtration precision of 𝟎.𝟎𝟎𝟎𝟏 μ𝐦, so you can trust every drop of your drinking water. (Tested by official third-party laboratory (SGS)).【𝟒 𝐘𝐞𝐚𝐫𝐬 𝐋𝐨𝐧𝐠-𝐋𝐚𝐬𝐭𝐢𝐧𝐠 𝐅𝐢𝐥𝐭𝐞𝐫 & 𝐃𝐈𝐘 𝐅𝐢𝐥𝐭𝐞𝐫 𝐑𝐞𝐩𝐥𝐚𝐜𝐞𝐦𝐞𝐧𝐭】 Our reverse osmosis filtration system comes with two filters (one RO filter and one PCB filter. Viomi 800G also offers one additional PCB filter), which makes the total filter lifespan reach up to 4 years. You won't need to specifically remember when to replace the filters since our LED faucet will remind you for filter replacement when the light is orange, and it's so easy for you to replace a filter in seconds without using any tools.【𝟑:𝟏 𝐏𝐮𝐫𝐞 𝐓𝐨 𝐃𝐫𝐚𝐢𝐧, 𝐒𝐚𝐯𝐞 𝐌𝐨𝐫𝐞 & 𝐆𝐫𝐞𝐞𝐧 𝐌𝐨𝐫𝐞】 Most tankless RO water filtration system have a purification rate of only 50%, while the V8 achieves an impressive 75%, which can produce only 1 cup of waste water for every 3 cups of pure water produced. With a 3:1 wastewater ratio, it significantly reduces water wastage.【𝟖𝟎𝟎 𝐆𝐏𝐃, 𝐇𝐢𝐠𝐡 𝐂𝐚𝐩𝐚𝐜𝐢𝐭𝐲 & 𝐅𝐚𝐬𝐭 𝐅𝐥𝐨𝐰】6 seconds to fill a 7oz cup of water. You can drink directly without having to wait for the slow filtration of a pitcher filter. A large water flow makes it more convenient to wash fruits and vegetables. Note: To maintain strong water flow, we do not recommend or support connecting the system to secondary appliances like refrigerators or ice maker.