GLACIER FRESH GFU03 Electric-Free Reverse Osmosis Water Filter 800 GPD

Additional Details from the Manufacturer

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• TankInside Design: GLACIER FRESH GFU03 internal tank reverse osmosis system features a water-powered structure, requiring no electricity with near-silent operation. This all-in-one design removes the need for an external tank and saves up to 70% of under-sink cabinet space, replacing bulky external storage tanks. It reduces electrical safety risks and fits most under-sink installations.
• 5-Stage Filtration: Under-sink Tankless reverse osmosis system meets NSF/ANSI 58, 372, and 401 standards, employing a precise multi-stage filtration system to effectively remove including PFOA, PFOS, chlorine, lead, fluoride and other heavy metals, as validated by independent testing. So every drop is clean, safe, and fresh-tasting, for a cleaner, better-tasting drinking experience.
• 800 GPD Fast Flow: This 800 GPD high-flow system provides purified water to meet water demands for large households. It features a built-in real-time water pressure gauge to help maintain stable system performance. Note: Actual flow rate varies based on incoming water pressure. A minimum inlet pressure of 40 PSI is recommended; lower pressure will reduce flow output.
• 3:1 Pure-to-Drain Ratio: The GFU03 Tankless Reverse Osmosis System features an impressive 3:1 pure-to-waste water ratio—producing just one cup of wastewater for every three cups of purified water—far more efficient than systems with 1:1 or 1:2 ratios. This not only saves you money but also reduces water waste and supports more sustainable water use.
• 30 Minute Quick Installation: This undersink water filter system can be installed in just 30 minutes, half the time of traditional tank-style systems (2–4 hours). Includes all adapters and tool-free connectors. Note: This product requires drilling a 1/2"-1" diameter hole in the sink to prepare for faucet installation.
• Easy-Replace Filter: The filter cartridge adopts a pull-out design. Before removing the filter, shut off the inlet water valve and drain residual water inside the unit. Note: Flush the filter cartridge under running water for 10–20 minutes after initial installation and each filter replacement.
• High‑Precision 0.0001μm RO Membrane: Equipped with premium 0.0001μm RO membrane, filters out ultra‑fine impurities for outstanding water purity. Advanced membrane technology brings clean, sweet‑tasting drinking water for your whole household.
• Check Cabinet Space Before Installation: GFU03 measures 13.58" L × 8.27" W × 16.54" H (345 × 210 × 420 mm). Please measure your under-sink space and leave extra room for water connections, tubing, and filter replacement.