Key Product Features : Ro system with booster pump Designed for use in areas with water pressure lower than 40 PSI,Turn on & off automatically. Lead Free Faucet Premium ceramic disc operated, Lead-free ro drinking water dispensing faucets. 3/8 inch output. Faucet has a mounting range of ½”- 1 ½” for installation in a sink or countertop. With extra 4 pcs replacement filters Total 9 pieces filters in the box. PP sediment filter x 2, Granular carbon filter x 2, Block carbon filter x 2, Ro membrane x 1, Post carbon filter x 2. Specification: FEED WATER PRESSURE: 15 – 50 PSI,(If high feed water pressure,please consider our other Ro system.) TEMPERATE:40-110°F/5-45°C PH:3.0 -11.0 , MAX TDS :1000 PPM, TURBIDITY < 1.0 NTU, MAX SDI <4.0, HARDNESS < 5 GPG, IRON <0.1, MANGANSESE <0.05 Shelf life: 3 Years Features: Designed for use in areas with water pressure lower than 40 PSI,Turn on & off automatically.with extra 4 pcs replacement filters, total 9 pieces filters in the box. HIGH EFFICIENT FILTRATION-5-Stage Under-Sink Reverse Osmosis Drinking Water Filtration System with NSF certificated Thin-film composite RO membrane filters down to 0.0001 micron,Reduce 99% contaminant ,including Heavy Metal, Arsenic, Lead ,Mercury ,Fluoride, Hardness,Cadmium,Chlorine,Taste,Odor,Asbestos, Hydrocarbons,Cyanide,Trivalent chromium and more 1000+ contaminants. HIGH QUALITY– All tube, fittings, storage tank,Ro membrane complies with NSF/ANSI standard 58 to provide healthy, safe, and pure water, NSF certificated LEAD FREE deluxe kitchen sink faucet as last pure water guarantee in your home. EASY&CONVENIENT-Streamlined DIY filter installation; fits most under sink cabinets, the ratio of pure water and waste water is 1:2. RESPONSABLE MANUFACTURER- ISO9001:2008 certificated Manufacturer ,also Member of Water Quality Association (WQA),Warranty-1year limited Product quality and service guarantee. Note: 1.It Is Recommended to Wait Until the Entire System Is Pressurized (Including Storage Tank&Faucet) and Re-Check for Any Leaks Before Leaving Installation Site. 2.It Is Normal for Some Black Carbon Fines to Appear in The Water When Emptying the First 2 Tanks of Water. 3.The First 2 Tanks of Water Produced Should be Emptied and Not Used.Push the Tubing All the Way in and Use Teflon Tape During Installation. Water Filter Replacements Set-50G Water Filter Replacements Set-75G Water Filter Replacements Set -100G Replacement Filters Set-4 RO Membrane-75G